US Bridges

Flatiron Road over Mud Creek

Fair

Cattaraugus County, New York · 2 Miles NW of Conewango · Structure no. 000000003322080

Built
1980
45 years old, rebuilt 2014
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 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 1980 and reconstructed in 2014, so it is 45 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 6 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 42 ft (12.8 m) long and 29 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesFlatiron Road
CrossesMud Creek
Location2 Miles NW of Conewango
RouteCounty Highway 0
Coordinates42.26438, -79.04557
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96 US tons
Inventory rating57 US tons

Structure

MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span41 ft (12.5 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (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 closed0.6 mi (1 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$2.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Flatiron Road over Mud Creek built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2014.

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 October 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 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 29 ft wide.

Who owns Flatiron Road over Mud Creek?

It is owned by the County Highway Agency.