US Bridges

RTE 987G over Underhill Avenue

Good

Westchester County, New York · 3.1 MI S JCT Rts TSP+202 · Structure no. 000000005502230

Built
1972
53 years old
Condition
Good
inspected September 2024
Type
Frame
Concrete
Length
53 ft
1 main span
Daily traffic
56,221
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 987G over Underhill Avenue is a concrete frame carrying RTE 987G over Underhill Avenue in Westchester County, New York. It was built in 1972, so it is 53 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 56,221 vehicles a day, projected to reach 79,310 by 2041. The structure is 53 ft (16.2 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 987G
CrossesUnderhill Avenue
Location3.1 MI S JCT Rts TSP+202
Coordinates41.25402, -73.80777
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.2 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span47 ft (14.3 m)
Deck width49 ft (14.8 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,221 (2021)
Projected traffic79,310 by 2041
Trucks0%
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$3.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 987G over Underhill Avenue built?

It was built in 1972, making it 53 years old in 2025.

What condition is RTE 987G over Underhill Avenue 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 September 2024.

How much traffic does RTE 987G over Underhill Avenue carry?

About 56,221 vehicles per day (2021 count).

How long is RTE 987G over Underhill Avenue?

The structure is 53 ft (16.2 m) long with a longest span of 47 ft (14.3 m) and a deck 49 ft wide.

Who owns RTE 987G over Underhill Avenue?

It is owned by the State Highway Agency.