US Bridges

County Road 31A over Genesee River

Fair

Allegany County, New York · 1.5 MI S of Belmont · Structure no. 000000003329920

Built
1971
54 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
215 ft
2 main spans
Daily traffic
525
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 31A over Genesee River is a prestressed concrete box beam or girders - multiple carrying County Road 31A over Genesee River in Allegany County, New York. It was built in 1971, so it is 54 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 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 525 vehicles a day, roughly 2% of them trucks, projected to reach 735 by 2041. The structure is 215 ft (65.5 m) long and 37 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesCounty Road 31A
CrossesGenesee River
Location1.5 MI S of Belmont
RouteCounty Highway 0
CountyAllegany County
StateNew York
Coordinates42.20657, -78.02256
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating81 US tons
Inventory rating38 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length215 ft (65.5 m)
Longest span106 ft (32.3 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic525 (2021)
Projected traffic735 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 31A over Genesee River built?

It was built in 1971, making it 54 years old in 2025.

What condition is County Road 31A over Genesee River 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 October 2024.

How much traffic does County Road 31A over Genesee River carry?

About 525 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is County Road 31A over Genesee River?

The structure is 215 ft (65.5 m) long with a longest span of 106 ft (32.3 m) and a deck 37 ft wide.

Who owns County Road 31A over Genesee River?

It is owned by the County Highway Agency.