US Bridges

Mosher Hollow RD over Trb Conewango Crk

Good

Cattaraugus County, New York · .1 MI South of East Leon · Structure no. 000000003322180

Built
1989
36 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
590
2021 count
Owner
County
County Highway Agency

About this bridge

Mosher Hollow RD over Trb Conewango Crk is a steel stringer/multi-beam or girder carrying Mosher Hollow RD over Trb Conewango Crk in Cattaraugus County, New York. It was built in 1989, 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 590 vehicles a day, roughly 10% of them trucks, projected to reach 826 by 2041. The structure is 41 ft (12.5 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesMosher Hollow RD
CrossesTrb Conewango Crk
Location.1 MI South of East Leon
RouteCounty Highway 0
CountyCattaraugus County
StateNew York
Coordinates42.34567, -78.95786
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span40 ft (12.1 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2021)
Projected traffic826 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mosher Hollow RD over Trb Conewango Crk built?

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

What condition is Mosher Hollow RD over Trb Conewango Crk 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 August 2023.

How much traffic does Mosher Hollow RD over Trb Conewango Crk carry?

About 590 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Mosher Hollow RD over Trb Conewango Crk?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.1 m) and a deck 26 ft wide.

Who owns Mosher Hollow RD over Trb Conewango Crk?

It is owned by the County Highway Agency.