US Bridges

Flatiron Road over Mud Creek

Fair

Cattaraugus County, New York · 2.1 MI NW of Conewango · Structure no. 000000003322090

Built
1989
36 years old, rebuilt 1994
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
139
2016 count
Owner
County
County Highway Agency

About this bridge

Flatiron Road over Mud Creek is a steel stringer/multi-beam or girder carrying Flatiron Road over Mud Creek in Cattaraugus County, New York. It was built in 1989 and reconstructed in 1994, 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 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 139 vehicles a day, roughly 7% of them trucks, projected to reach 195 by 2036. The structure is 50 ft (15.2 m) long and 27 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesFlatiron Road
CrossesMud Creek
Location2.1 MI NW of Conewango
RouteCounty Highway 0
Coordinates42.26719, -79.04561
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic139 (2016)
Projected traffic195 by 2036
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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$2.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Flatiron Road over Mud Creek built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 1994.

What condition is Flatiron Road over Mud 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 September 2024.

How much traffic does Flatiron Road over Mud Creek carry?

About 139 vehicles per day (2016 count), of which roughly 7% are trucks.

How long is Flatiron Road over Mud Creek?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns Flatiron Road over Mud Creek?

It is owned by the County Highway Agency.