RTE 908M
RTE 908M in 4.6 MI E Ny City Line - S, Nassau County, New York received a condition grade of B (63/100). Built in 1946, the bridge carries 161K vehicles daily on RTE 908M over Hempstead Lake.
RTE 908M carries a B on the BridgeSafety Condition Score with 63/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1946, making it 80 years old — well beyond the typical 50-year design life of bridges constructed in that era. Bridges of this vintage usually need substantial rehabilitation or replacement once their original components have aged out, regardless of current condition ratings. RTE 908M carries an average daily traffic count of 160,996 vehicles, with 6 lane(s) crossing Hempstead Lake. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
RTE 908M is a 80-year-old bridge located 4.6 MI E Ny City Line - S in Nassau County, New York. The bridge carries RTE 908M over Hempstead Lake with 6 traffic lanes, handling approximately 161K vehicles per day. Built in 1946, the structure spans 7.3 meters.
The bridge received a Condition Grade of B (63/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
RTE 908M has a Condition Score of 63/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
RTE 908M was built in 1946, making it 80 years old. The average bridge age in the United States is 48 years.
RTE 908M carries approximately 161K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 7.3 meters long and located on RTE 908M in 4.6 MI E Ny City Line - S, Nassau County, New York.
No, RTE 908M is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
RTE 908M is located 4.6 MI E Ny City Line - S in Nassau County, New York. The bridge carries RTE 908M over Hempstead Lake. Its coordinates are 40.686156, -73.641100. It is maintained by State Highway Agency.
RTE 908M carries RTE 908M over Hempstead Lake. The bridge is 7.3 meters long and was built in 1946.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.