US Bridges

RTE 138 over Muscoot Reservoir

Fair

Westchester County, New York · 0.3MI.W.JCT.RTES.138+684I · Structure no. 000000001037970

Built
1986
39 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
291 ft
3 main spans
Daily traffic
8,459
2015 count
Owner
State
State Highway Agency

About this bridge

RTE 138 over Muscoot Reservoir is a steel continuous stringer/multi-beam or girder carrying RTE 138 over Muscoot Reservoir in Westchester County, New York. It was built in 1986, so it is 39 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 8,459 vehicles a day, roughly 4% of them trucks, projected to reach 10,466 by 2041. The structure is 291 ft (88.7 m) long and 59 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesRTE 138
CrossesMuscoot Reservoir
Location0.3MI.W.JCT.RTES.138+684I
RouteState Highway 138
CountyWestchester County
StateNew York
Coordinates41.29761, -73.68156
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length291 ft (88.7 m)
Longest span120 ft (36.5 m)
Deck width59 ft (18.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,459 (2015)
Projected traffic10,466 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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$11.8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 138 over Muscoot Reservoir built?

It was built in 1986, making it 39 years old in 2025.

What condition is RTE 138 over Muscoot Reservoir 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 July 2024.

How much traffic does RTE 138 over Muscoot Reservoir carry?

About 8,459 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is RTE 138 over Muscoot Reservoir?

The structure is 291 ft (88.7 m) long with a longest span of 120 ft (36.5 m) and a deck 59 ft wide.

Who owns RTE 138 over Muscoot Reservoir?

It is owned by the State Highway Agency.