US Bridges

RTE 907W over Mamaroneck Ave Mamarone

Fair

Westchester County, New York · 1.5MI.S Jct.Rte 127 & Hrp · Structure no. 000000005523361

Built
1987
38 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
91 ft
1 main span
Daily traffic
42,383
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 907W over Mamaroneck Ave Mamarone is a steel stringer/multi-beam or girder carrying RTE 907W over Mamaroneck Ave Mamarone in Westchester County, New York. It was built in 1987, so it is 38 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 42,383 vehicles a day, roughly 2% of them trucks, projected to reach 59,789 by 2041. The structure is 91 ft (27.7 m) long and 65 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 907W
CrossesMamaroneck Ave Mamarone
Location1.5MI.S Jct.Rte 127 & Hrp
RouteState Highway 907W
CountyWestchester County
StateNew York
Coordinates40.98344, -73.74426
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span89 ft (27.1 m)
Deck width65 ft (19.7 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,383 (2021)
Projected traffic59,789 by 2041
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$7.6 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 907W over Mamaroneck Ave Mamarone built?

It was built in 1987, making it 38 years old in 2025.

What condition is RTE 907W over Mamaroneck Ave Mamarone in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does RTE 907W over Mamaroneck Ave Mamarone carry?

About 42,383 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is RTE 907W over Mamaroneck Ave Mamarone?

The structure is 91 ft (27.7 m) long with a longest span of 89 ft (27.1 m) and a deck 65 ft wide.

Who owns RTE 907W over Mamaroneck Ave Mamarone?

It is owned by the State Highway Agency.