US Bridges

South Grand ST over Cobleskill Creek

Good

Schoharie County, New York · Village of Cobleskill · Structure no. 000000003228510

Built
1989
36 years old, rebuilt 2023
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
137 ft
1 main span
Daily traffic
2,031
2016 count
Owner
County
County Highway Agency

About this bridge

South Grand ST over Cobleskill Creek is a steel stringer/multi-beam or girder carrying South Grand ST over Cobleskill Creek in Schoharie County, New York. It was built in 1989 and reconstructed in 2023, so it is 36 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 2,031 vehicles a day, roughly 4% of them trucks, projected to reach 2,512 by 2041. The structure is 137 ft (41.8 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSouth Grand ST
CrossesCobleskill Creek
LocationVillage of Cobleskill
Coordinates42.67255, -74.48197
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span135 ft (41.1 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,031 (2016)
Projected traffic2,512 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Grand ST over Cobleskill Creek built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 2023.

What condition is South Grand ST over Cobleskill 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 April 2024.

How much traffic does South Grand ST over Cobleskill Creek carry?

About 2,031 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is South Grand ST over Cobleskill Creek?

The structure is 137 ft (41.8 m) long with a longest span of 135 ft (41.1 m) and a deck 32 ft wide.

Who owns South Grand ST over Cobleskill Creek?

It is owned by the County Highway Agency.