US Bridges

Old Niagara Road over Somerset RR

Fair

Niagara County, New York · 1.7 MI NW JCT SH31 & SH78 · Structure no. 000000003367320

Built
1983
42 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
98 ft
1 main span
Daily traffic
3,591
2020 count
Owner
County
County Highway Agency

About this bridge

Old Niagara Road over Somerset RR is a steel stringer/multi-beam or girder carrying Old Niagara Road over Somerset RR in Niagara County, New York. It was built in 1983, so it is 42 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 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 3,591 vehicles a day, roughly 7% of them trucks, projected to reach 4,443 by 2041. The structure is 98 ft (29.9 m) long and 54 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesOld Niagara Road
CrossesSomerset RR
Location1.7 MI NW JCT SH31 & SH78
RouteCounty Highway 0
CountyNiagara County
StateNew York
Coordinates43.19229, -78.69914
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
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating74 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length98 ft (29.9 m)
Longest span96 ft (29.2 m)
Deck width54 ft (16.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,591 (2020)
Projected traffic4,443 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed6.8 mi (11 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$4.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Old Niagara Road over Somerset RR built?

It was built in 1983, making it 42 years old in 2025.

What condition is Old Niagara Road over Somerset RR 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 Old Niagara Road over Somerset RR carry?

About 3,591 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Old Niagara Road over Somerset RR?

The structure is 98 ft (29.9 m) long with a longest span of 96 ft (29.2 m) and a deck 54 ft wide.

Who owns Old Niagara Road over Somerset RR?

It is owned by the County Highway Agency.