US Bridges

RTE 30 over Keyserkill Creek

Fair

Schoharie County, New York · 7.9 MI SW JCT Rt 30 + 145 · Structure no. 000000001020960

Built
1959
66 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
1,561
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 30 over Keyserkill Creek is a prestressed concrete box beam or girders - multiple carrying RTE 30 over Keyserkill Creek in Schoharie County, New York. It was built in 1959, so it is 66 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 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 1,561 vehicles a day, roughly 14% of them trucks, projected to reach 1,628 by 2041. The structure is 77 ft (23.5 m) long and 41 ft wide. If it were closed, the detour would be 41.6 mi (67 km).

Location

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CarriesRTE 30
CrossesKeyserkill Creek
Location7.9 MI SW JCT Rt 30 + 145
RouteState Highway 30
CountySchoharie County
StateNew York
Coordinates42.52311, -74.41114
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating68 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span72 ft (21.9 m)
Deck width41 ft (12.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,561 (2020)
Projected traffic1,628 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed41.6 mi (67 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 30 over Keyserkill Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is RTE 30 over Keyserkill 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 December 2024.

How much traffic does RTE 30 over Keyserkill Creek carry?

About 1,561 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is RTE 30 over Keyserkill Creek?

The structure is 77 ft (23.5 m) long with a longest span of 72 ft (21.9 m) and a deck 41 ft wide.

Who owns RTE 30 over Keyserkill Creek?

It is owned by the State Highway Agency.