US Bridges

RTE 31 over Oak Orchard River

Good

Orleans County, New York · 0.2MI E JCT Rts 31 + 63 · Structure no. 000000001021510

Built
1970
55 years old, rebuilt 2004
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
128 ft
1 main span
Daily traffic
3,848
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 31 over Oak Orchard River is a steel stringer/multi-beam or girder carrying RTE 31 over Oak Orchard River in Orleans County, New York. It was built in 1970 and reconstructed in 2004, so it is 55 years old, older 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 3,848 vehicles a day, roughly 6% of them trucks, projected to reach 3,866 by 2041. The structure is 128 ft (39 m) long and 59 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

CarriesRTE 31
CrossesOak Orchard River
Location0.2MI E JCT Rts 31 + 63
RouteState Highway 31
Coordinates43.22049, -78.38188
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating78 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length128 ft (39 m)
Longest span124 ft (37.8 m)
Deck width59 ft (17.9 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,848 (2020)
Projected traffic3,866 by 2041
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed17.4 mi (28 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$3.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 31 over Oak Orchard River built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2004.

What condition is RTE 31 over Oak Orchard River 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 October 2023.

How much traffic does RTE 31 over Oak Orchard River carry?

About 3,848 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is RTE 31 over Oak Orchard River?

The structure is 128 ft (39 m) long with a longest span of 124 ft (37.8 m) and a deck 59 ft wide.

Who owns RTE 31 over Oak Orchard River?

It is owned by the State Highway Agency.