US Bridges

West 31st Street over AMTRAK Layup Tracks

Good

New York County, New York · In West Manhattan · Structure no. 00000000226672A

Built
2021
4 years old
Condition
Good
inspected October 2024
Type
Girder and Floorbeam System
Steel
Length
196 ft
4 main spans
Daily traffic
8,241
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

West 31st Street over AMTRAK Layup Tracks is a steel girder and floorbeam system carrying West 31st Street over AMTRAK Layup Tracks in New York County, New York. It was built in 2021, so it is 4 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,241 vehicles a day, roughly 6% of them trucks, projected to reach 16,171 by 2041. The structure is 196 ft (59.7 m) long and 39 ft wide.

CarriesWest 31st Street
CrossesAMTRAK Layup Tracks
LocationIn West Manhattan
RouteCity Street 0
Coordinates40.75185, -73.99856
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating82 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length196 ft (59.7 m)
Longest span84 ft (25.6 m)
Deck width39 ft (11.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic8,241 (2018)
Projected traffic16,171 by 2041
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$11.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was West 31st Street over AMTRAK Layup Tracks built?

It was built in 2021, making it 4 years old in 2025.

What condition is West 31st Street over AMTRAK Layup Tracks in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does West 31st Street over AMTRAK Layup Tracks carry?

About 8,241 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is West 31st Street over AMTRAK Layup Tracks?

The structure is 196 ft (59.7 m) long with a longest span of 84 ft (25.6 m) and a deck 39 ft wide.

Who owns West 31st Street over AMTRAK Layup Tracks?

It is owned by the City or Municipal Highway Agency.