US Bridges

County Road 91 over N Br Conewango Ck

Fair

Chautauqua County, New York · 1.4 Miles North of Balcon · Structure no. 000000003325890

Built
1995
30 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
694
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 91 over N Br Conewango Ck is a prestressed concrete box beam or girders - multiple carrying County Road 91 over N Br Conewango Ck in Chautauqua County, New York. It was built in 1995, so it is 30 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 694 vehicles a day, roughly 11% of them trucks, projected to reach 700 by 2041. The structure is 58 ft (17.7 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 91
CrossesN Br Conewango Ck
Location1.4 Miles North of Balcon
RouteCounty Highway 0
CountyChautauqua County
StateNew York
Coordinates42.38916, -79.08064
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
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating57.9 US tons
Inventory rating27.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length58 ft (17.7 m)
Longest span56 ft (17 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic694 (2020)
Projected traffic700 by 2041
Trucks11%
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$2.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 91 over N Br Conewango Ck built?

It was built in 1995, making it 30 years old in 2025.

What condition is County Road 91 over N Br Conewango Ck 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 May 2023.

How much traffic does County Road 91 over N Br Conewango Ck carry?

About 694 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is County Road 91 over N Br Conewango Ck?

The structure is 58 ft (17.7 m) long with a longest span of 56 ft (17 m) and a deck 33 ft wide.

Who owns County Road 91 over N Br Conewango Ck?

It is owned by the County Highway Agency.