US Bridges

County Road 70A over Big Creek

Fair

Steuben County, New York · 1.1 Miles NE of N Hornell · Structure no. 000000003334740

Built
1936
89 years old, rebuilt 1990
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
88 ft
1 main span
Daily traffic
2,140
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 70A over Big Creek is a steel stringer/multi-beam or girder carrying County Road 70A over Big Creek in Steuben County, New York. It was built in 1936 and reconstructed in 1990, so it is 89 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 2,140 vehicles a day, roughly 5% of them trucks, projected to reach 2,232 by 2041. The structure is 88 ft (26.8 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCounty Road 70A
CrossesBig Creek
Location1.1 Miles NE of N Hornell
RouteCounty Highway 0
CountySteuben County
StateNew York
Coordinates42.35716, -77.65448
Functional classRural Major 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 inspectionNovember 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating80 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span85 ft (25.9 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,140 (2018)
Projected traffic2,232 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 70A over Big Creek built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1990.

What condition is County Road 70A over Big Creek 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 November 2023.

How much traffic does County Road 70A over Big Creek carry?

About 2,140 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is County Road 70A over Big Creek?

The structure is 88 ft (26.8 m) long with a longest span of 85 ft (25.9 m) and a deck 31 ft wide.

Who owns County Road 70A over Big Creek?

It is owned by the County Highway Agency.