US Bridges

Usr 20 over Seymour Creek

Good

Huron County, Ohio · 2.24 MI E of SR 4 · Structure no. 3900665

Built
1949
76 years old, rebuilt 1988
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
2,842
2015 count
Owner
State
State Highway Agency

About this bridge

Usr 20 over Seymour Creek is a prestressed concrete box beam or girders - multiple carrying Usr 20 over Seymour Creek in Huron County, Ohio. It was built in 1949 and reconstructed in 1988, so it is 76 years old, older than the Ohio average of 47.3 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 2,842 vehicles a day, roughly 31% of them trucks, projected to reach 3,945 by 2035. The structure is 28 ft (8.5 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUsr 20
CrossesSeymour Creek
Location2.24 MI E of SR 4
RouteU.S. Route 20
StateOhio
Coordinates41.25738, -82.75354
Functional classRural Principal Arterial - Other

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 inspectionMarch 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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width44 ft (13.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,842 (2015)
Projected traffic3,945 by 2035
Trucks31%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Usr 20 over Seymour Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1988.

What condition is Usr 20 over Seymour Creek 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 March 2023.

How much traffic does Usr 20 over Seymour Creek carry?

About 2,842 vehicles per day (2015 count), of which roughly 31% are trucks.

How long is Usr 20 over Seymour Creek?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 44 ft wide.

Who owns Usr 20 over Seymour Creek?

It is owned by the State Highway Agency.