US Bridges

RTE 30 over Dunning Creek

Good

Hamilton County, New York · 06 S JCT Rts 8+30 · Structure no. 000000001021200

Built
1957
68 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
1,435
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 30 over Dunning Creek is a concrete culvert carrying RTE 30 over Dunning Creek in Hamilton County, New York. It was built in 1957, so it is 68 years old, older 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 1,435 vehicles a day, roughly 14% of them trucks, projected to reach 1,547 by 2041. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 49.7 mi (80 km).

CarriesRTE 30
CrossesDunning Creek
Location06 S JCT Rts 8+30
RouteState Highway 30
Coordinates43.43879, -74.25647
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span26 ft (7.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,435 (2020)
Projected traffic1,547 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 km)
TollOn a free road
National Highway SystemYes

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$393,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 30 over Dunning Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is RTE 30 over Dunning 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 September 2023.

How much traffic does RTE 30 over Dunning Creek carry?

About 1,435 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is RTE 30 over Dunning Creek?

The structure is 30 ft (9.1 m) long with a longest span of 26 ft (7.9 m).

Who owns RTE 30 over Dunning Creek?

It is owned by the State Highway Agency.