US Bridges

RTE 30A over Cobleskill Creek

Fair

Schoharie County, New York · 0.1 MI N JCT SH 30A & SH · Structure no. 000000001021360

Built
1997
28 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
185 ft
1 main span
Daily traffic
1,548
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 30A over Cobleskill Creek is a steel stringer/multi-beam or girder carrying RTE 30A over Cobleskill Creek in Schoharie County, New York. It was built in 1997, so it is 28 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 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 1,548 vehicles a day, roughly 25% of them trucks, projected to reach 1,557 by 2041. The structure is 185 ft (56.4 m) long and 42 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesRTE 30A
CrossesCobleskill Creek
Location0.1 MI N JCT SH 30A & SH
RouteState Highway 30A
CountySchoharie County
StateNew York
Coordinates42.70742, -74.33517
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length185 ft (56.4 m)
Longest span180 ft (54.8 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,548 (2021)
Projected traffic1,557 by 2041
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

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$4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 30A over Cobleskill Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is RTE 30A over Cobleskill 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 September 2024.

How much traffic does RTE 30A over Cobleskill Creek carry?

About 1,548 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is RTE 30A over Cobleskill Creek?

The structure is 185 ft (56.4 m) long with a longest span of 180 ft (54.8 m) and a deck 42 ft wide.

Who owns RTE 30A over Cobleskill Creek?

It is owned by the State Highway Agency.