SNCF Class BB 16500
| Company type | Electric locomotive series |
|---|---|
| Industry | Rail transport |
| Founded | 1958 |
| Founder | Alsthom |
| Defunct | 2011 |
| Headquarters | France |
| Products | Electric locomotives |
Number of employees | 294 (units built) |
The SNCF BB 16500 series consisted of 294 electric locomotives powered by 25 kV single-phase 50 Hz AC, manufactured by Alsthom and delivered between 1958 and 1964. Commissioned starting in 1954 to facilitate the electrification of radial routes from Paris toward northern and eastern France, this class became the most populous group of electric locomotives within SNCF's inventory.
These locomotives demonstrated significant versatility, operating both regional passenger services and freight trains throughout northeastern France. Their reach extended to areas such as the Jura region, the Dole-Vallorbe corridor, and key maritime terminals including Cherbourg and Le Havre. Additionally, a number of units were deployed on suburban lines serving Paris’s northern and eastern sectors. With the advent of more modern locomotives and the relatively modest comfort of their cabs, their withdrawal was gradually implemented between 2001 and 2011.
Genesis of the class
During the late 1950s, electrification efforts on the Paris–Lille line and other eastern radial routes utilized single-phase alternating current systems. The initial locomotive roster featured BB 16000 models, which combined the driving capabilities of the BB 12000 series (introduced in 1954) with the body design of BB 9200 units (in service since 1957 on routes from Paris to Lyon, Toulouse, and Bordeaux).
In 1954, guided by Louis Armand and Fernand Nouvion, research commenced on developing a dual-purpose locomotive suitable for both passenger and freight duties. The specifications targeted approximately 2,000 kW power output, a weight near 60 tonnes, one motor per bogie, and a two-speed gear ratio allowing maximum speeds of either 90 or 150 km/h. Alsthom’s proposal was ultimately favored over that submitted by MTE.
An initial concept featuring a single driving cab resembling the BB 12000 was discarded due to operational drawbacks. The finalized BB 16500 design incorporated two driving cabs, continuous power rated at 2,580 kW, selectable speeds of 100 or 140 km/h depending on gear ratio settings, and a total mass of 74 tonnes. The redesign led to a slight increase in length and resolved earlier underestimations related to weight from preliminary analyses.
Technical characteristics
The BB 16500 class represents medium-power locomotives operating on single-phase 25 kV/50 Hz current, constructed by Alsthom’s Belfort facility.
Each locomotive features a frame supporting dual driver cabs along with detachable panels including side walls, roof sections, and pantograph end covers. The overall body length measures 14.40 meters, drawing design inspiration from early CC 7100 models. Original panoramic cab windows were replaced with sheet metal uprights during refurbishment campaigns carried out between 1965 and 1970.
The propulsion system shares many components with those found in the BB 12000 and BB 16000 classes. Over time, rectifier technology transitioned from mercury vapor ignitrons to silicon diode units as part of modernization efforts.
Bogies are equipped with a short wheelbase measuring 1.608 meters and feature a gear ratio change mechanism that can only be engaged while stationary—a system noted for occasional jamming issues. Three different gear ratio configurations were implemented: the first production batch (BB 16501–16654) incorporated elastic return leg suspension; subsequent batches (BB 16655–16794) adopted pendular suspension designs. Between 1998 and 2003, retrofitting with double-decker suspension systems enhanced cab ride quality on approximately 120 locomotives.
Across six years, a total of 294 units were produced through multiple orders corresponding with ongoing electrification in northern and eastern France. As of 2021, this remains SNCF’s largest series of electric locomotives. The BB 16500 also served as the inaugural model within the BB Alsthom family that includes classes such as BB 8500, BB 17000, BB 20200, and BB 25500.
Liveries
Throughout their operational lifespan, the BB 16500 locomotives exhibited a variety of paint schemes, some of which were applied only briefly or to a limited number of units.
At the outset, these locomotives were painted in a uniform green shade without any additional markings. Later production runs featured a light bluish-green color accented by a "Celtic green" band, which was soon replaced by a darker tone. Between 1970 and 1971, they adopted a dark green livery with white stripes outlining dark grey ventilation grilles and corresponding "moustache" designs on the front ends, similar to the BB 8500, BB 17000, and BB 25500 classes. Their reporting numbers were painted in daffodil yellow. Locomotives BB 16595 and BB 16625 retained this color scheme until their retirement in 2002 and 2003 respectively.
The widespread "concrete" grey paint with orange bands, typical of SNCF locomotives from the 1980s onward, was applied to 278 units of the BB 16500 series.
In an experimental phase between 1992 and 1998, BB 16604 and BB 16789 were repainted in the so-called "Arzens livery," combining grey with either "havana brown" or "garrigue green," complemented by orange moustaches. Although this design was not broadly adopted on BB 16500s, it proved popular among many BB 9400 locomotives.
A group of five BB 16500s assigned to TER Picardie’s "dromedary trains" displayed a concrete grey body with front faces and shutter frames painted in "parrot green."
During the early 2000s, seven out of the 156 units dedicated to freight service received a distinctive "Neapolitan slice" livery featuring green, grey, and white colors.
BB 16583, withdrawn in 2009, was unique in sporting the "Île-de-France" livery, a scheme more commonly seen on BB 17000 locomotives.
Rise and Climax
The delivery of the BB 16500 series commenced on 25 July 1958 with unit BB 16501 entering service at Strasbourg depot and concluded on 26 November 1964 when BB 16794 was delivered to Paris-La Chapelle.
Initially deployed on the Luxembourg–Metz–Strasbourg–Basel corridor, these locomotives surpassed performance expectations before being assigned to Paris’s newly electrified northern suburban lines. Their operational scope expanded alongside continued electrification throughout the northeastern network. By 1965, some units were allocated to Dole for hauling international services such as the Orient-Express, occasionally running in double-heading formation.
By late 1964, after full electrification of the northeast network, BB 16500s operated diverse services connecting Dunkirk to Paris and Vallorbe. However, by 1968 they were replaced on Jura routes by dual-current BB 25500s, while from 1965 onwards much of the northern suburban traffic shifted to BB 17000 locomotives. Consequently, BB 16500s moved to northwestern routes serving destinations like Le Havre, Deauville, and Cherbourg.
Decline
Train drivers frequently criticized the BB 16500 class for an uncomfortable ride quality caused by flexible suspension systems and short bogie wheelbases, earning them the nickname "dancers." Despite these issues, they remained versatile performers across suburban, regional, international passenger trains as well as heavy freight operations exceeding weights of 3000 tonnes. Their decline began in the late 1990s following the introduction of RER line E on the Transilien Paris-Est network. Certain services were replaced by Z 22500 electric multiple units; others transitioned to BB 17000 locomotives. The arrival of new electric multiple units for TER duties alongside Alstom freight locomotives further diminished their role. Nevertheless, their reliability persisted into the early twenty-first century with only five incidents per million kilometers traveled.
During the 2000s, the BB 16500 experienced renewed use in TER operations when paired with regional reversible trains (RRR), a capability shared exclusively with BB 17000 and BB 25500 classes. For instance, Lorraine’s TER Métrolor service employed Thionville-based BB 16500s starting from the year 2000.
Withdrawals commenced in 2001; by 2004 a total of 111 units had been retired. Freight responsibilities shifted primarily to BB 27000 locomotives. Remaining units—some still bearing Fret livery but rebranded for TER service—were mainly active across Nord-Pas-de-Calais, Picardie, Normandy, Champagne-Ardenne, Alsace, and Île-de-France regions.
A farewell tour took place in Lorraine on October 17, 2009 to mark their final regional operations. The last locomotive departed this area by the end of that year.
By August 2010 only fifteen locomotives remained active on TER Picardie and Nord-Pas-de-Calais routes; all but nine were withdrawn by September. The very last unit in service, BB 16651, was retired on September 9, 2011 following its final journey on September 1.
Lines operated
- Paris-Nord to Beauvais
- Paris-Est via Château-Thierry to Châlons-sur-Marne
- Paris-Est to Coulommiers
- Paris Est towards Meaux
- Apach - Thionville - Woippy (freight services)
- Nancy to Thionville
- Nancy - Lunéville route
- Nancy through Épinal to Remiremont
- Nancy to Saint-Dié-des-Vosges
- Nancy - Bar-le-Duc corridor
- Metz to Saarburg
- Strasbourg to Sélestat
- Strasbourg - Mulhouse connection
- Mulhouse via Altkirch to Belfort
- Lille to Valenciennes
- Valenciennes - Aulnoye line
- Valenciennes towards Cambrai
- Sedan through Charleville-Mézières, Reims to Épernay
- Charleville-Mézières to Longwy
- Amiens to Creil
- Paris Nord linked with Amiens
- Creil through Compiègne, Saint-Quentin to Busigny
- Arras to Dunkirk station
- Lille-Flandres to Dunkirk
- Lille-Flandres connected with Arras
- Basel - Mulhouse route
- Bondy – Aulnay-sous-Bois (prior to conversion into tram-train line T4)
- Mulhouse - Dole route
- Dole towards Vallorbe and Frasne, extending to Pontarlier
- Chalindrey - Toul line
Depot assignments
- Achères (November 1998 – 2006)
- La Chapelle (December 1958 – 2008)
- Dolé (1963 – February 1968)
- Épernay (1981 – 2010), primary workshop for the class
- Hellemmes (1958 – 1980), main maintenance facility for the class
- Lens (1958 – 2011)
- Strasbourg (July 1958 – 2009)
- Thionville (1993 – 2010)
- La Villette (June 1962 – 2003)
Experimental locomotives
Between 1959 and 1969, BB 16540 was transformed into BB 20004, serving as a prototype for a compact dual-current locomotive with enhanced power under alternating current, operating primarily on the “Étoile de Savoie” routes around La Roche-sur-Foron. After trials, it was restored to its original form and designation.
Locomotives BB 16515, BB 16549 (retired in 2007), BB 16550, BB 16575 (retired in 2006), and BB 16592 (retired in 2009) were deployed in “dromedary train” configurations on the TER Picardie service between Paris and Beauvais. Positioned between two stainless steel RRR push-pull units, this arrangement eliminated the need for using their driver cabs and enhanced passenger comfort. These units were repainted with liveries specific to this service. The dromedary train operation ceased in 2007 following the introduction of modern TER multiple-unit trains, after which these locomotives returned to conventional duties on other TER Picardie lines.
Delivered in 1961 as CC 10002, locomotive 16655 functioned as a prototype featuring a lightweight single-engine type C bogie design that was later incorporated into several SNCF classes including CC 40100, CC 72000, CC 6500, and CC 21000. It was converted into a BB 16500 in 1970.
BB 16700 underwent modifications for testing automatic coupling systems, receiving a reinforced frame and extended end caps; it retained this configuration until its withdrawal in 2007.
From 1988 to 1990, BB units numbered from 16780 to 16784 were fitted with multiplexing technology enabling control of three locomotives distributed along ore trains by the lead engine through cable linkage. This system was upgraded between 1990 and 1993 to utilize radio communication. A renewed trial during 1998-1999 involving BBs 16781 and 16782 aimed at hauling extremely long () and heavy () trains; however, it did not lead to operational implementation and the locomotives reverted to standard service afterward.
Preservation
Currently, three locomotives are fully preserved, all exhibiting the concrete livery.
- BB 16506 is maintained by the Mining and Railway Center (CMCF) located in Oignies (Pas-de-Calais); additionally, the organization preserved a cab from BB 16517.
- BB 16745 is displayed within the Mohon rotunda at the Mulhouse train museum.
- BB 16678 is conserved by the municipality of Magenta, Marne, situated on a dedicated track section at Place Roger-Pointurier. In June 2018, it received its official name Magenta, marking the first instance of naming a class member during preservation.
Disposal to third parties
In 2008, SNCF Fret transferred ownership of three locomotives—BB 16546, BB 16612, and BB 16654—to the Romanian freight operator Regiotrans, which is currently known as Regio Călători.
In popular culture
The BB 16571 locomotive was responsible for pulling the 1961 ORTF Christmas train traveling from Lille to Paris. This event included a live broadcast featuring performances both onboard and at stations, hosted by Jean Nohain and Catherine Langeais.
At the beginning of the 1973 film Deux Hommes dans la ville, directed by José Giovanni, the BB 16665 locomotive makes an appearance.