US Bridges

County Road 70A over Big Creek

Good

Steuben County, New York · 2.9 MI East of N Hornell · Structure no. 000000003334710

Built
1993
32 years old
Condition
Good
inspected August 2023
Type
Slab
Wood or Timber
Length
38 ft
1 main span
Daily traffic
1,179
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 70A over Big Creek is a wood or timber slab carrying County Road 70A over Big Creek in Steuben County, New York. It was built in 1993, so it is 32 years old, younger 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 1,179 vehicles a day, roughly 4% of them trucks, projected to reach 1,229 by 2041. The structure is 38 ft (11.6 m) long and 35 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesCounty Road 70A
CrossesBig Creek
Location2.9 MI East of N Hornell
RouteCounty Highway 0
Coordinates42.36538, -77.608
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckNot applicable
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span32 ft (9.8 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,179 (2018)
Projected traffic1,229 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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$1.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 70A over Big Creek built?

It was built in 1993, making it 32 years old in 2025.

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

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

About 1,179 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is County Road 70A over Big Creek?

The structure is 38 ft (11.6 m) long with a longest span of 32 ft (9.8 m) and a deck 35 ft wide.

Who owns County Road 70A over Big Creek?

It is owned by the County Highway Agency.