US Bridges

Palmer Avenue over Mnrr Hu Line

Fair

Westchester County, New York · 0.75 MI NW JCT US9+NY448 · Structure no. 000000007712740

Built
1910
115 years old, rebuilt 1989
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
72 ft
1 main span
Daily traffic
594
2019 count
Owner
Railroad
Railroad

About this bridge

Palmer Avenue over Mnrr Hu Line is a steel stringer/multi-beam or girder carrying Palmer Avenue over Mnrr Hu Line in Westchester County, New York. It was built in 1910 and reconstructed in 1989, so it is 115 years old, older 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 6 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 594 vehicles a day, roughly 5% of them trucks, projected to reach 832 by 2039. The structure is 72 ft (21.9 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesPalmer Avenue
CrossesMnrr Hu Line
Location0.75 MI NW JCT US9+NY448
CountyWestchester County
StateNew York
Coordinates41.09271, -73.86965
Functional classUrban Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110.1 US tons
Inventory rating81 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span71 ft (21.6 m)
Deck width31 ft (9.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic594 (2019)
Projected traffic832 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Palmer Avenue over Mnrr Hu Line built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1989.

What condition is Palmer Avenue over Mnrr Hu Line 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 September 2023.

How much traffic does Palmer Avenue over Mnrr Hu Line carry?

About 594 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Palmer Avenue over Mnrr Hu Line?

The structure is 72 ft (21.9 m) long with a longest span of 71 ft (21.6 m) and a deck 31 ft wide.

Who owns Palmer Avenue over Mnrr Hu Line?

It is owned by the Railroad and maintained by the Town or Township Highway Agency.