US Bridges

County Road 30 over Trapping Brook

Fair

Allegany County, New York · 1.8 MI E of Wellsville · Structure no. 000000003357620

Built
1985
40 years old
Condition
Fair
inspected July 2024
Type
Slab
Wood or Timber
Length
32 ft
1 main span
Daily traffic
744
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 30 over Trapping Brook is a wood or timber slab carrying County Road 30 over Trapping Brook in Allegany County, New York. It was built in 1985, so it is 40 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 744 vehicles a day, roughly 8% of them trucks, projected to reach 920 by 2041. The structure is 32 ft (9.8 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCounty Road 30
CrossesTrapping Brook
Location1.8 MI E of Wellsville
RouteCounty Highway 0
CountyAllegany County
StateNew York
Coordinates42.12068, -77.90753
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating28 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckNot applicable
Main spans1
Design loadH 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic744 (2020)
Projected traffic920 by 2041
Trucks8%
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$958,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 30 over Trapping Brook built?

It was built in 1985, making it 40 years old in 2025.

What condition is County Road 30 over Trapping Brook 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 July 2024.

How much traffic does County Road 30 over Trapping Brook carry?

About 744 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is County Road 30 over Trapping Brook?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 33 ft wide.

Who owns County Road 30 over Trapping Brook?

It is owned by the County Highway Agency.