US Bridges

Riddle Road over Mud Creek

Fair

Niagara County, New York · 1.5 Miles East of Rapids · Structure no. 000000003329510

Built
1954
71 years old, rebuilt 1989
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
348
2021 count
Owner
County
County Highway Agency

About this bridge

Riddle Road over Mud Creek is a prestressed concrete box beam or girders - multiple carrying Riddle Road over Mud Creek in Niagara County, New York. It was built in 1954 and reconstructed in 1989, so it is 71 years old, older 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 348 vehicles a day, roughly 13% of them trucks, projected to reach 487 by 2041. The structure is 49 ft (14.9 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesRiddle Road
CrossesMud Creek
Location1.5 Miles East of Rapids
RouteCounty Highway 0
Coordinates43.09728, -78.60647
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating12 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length49 ft (14.9 m)
Longest span48 ft (14.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic348 (2021)
Projected traffic487 by 2041
Trucks13%
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$1.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Riddle Road over Mud Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1989.

What condition is Riddle 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 August 2024.

How much traffic does Riddle Road over Mud Creek carry?

About 348 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Riddle Road over Mud Creek?

The structure is 49 ft (14.9 m) long with a longest span of 48 ft (14.6 m) and a deck 32 ft wide.

Who owns Riddle Road over Mud Creek?

It is owned by the County Highway Agency.