US Bridges

North Greenfield 7 over N Greenfield 7 / Mud Run

Fair

Huron County, Ohio · 0.7 MI W of Thomas RD · Structure no. 3940128

Built
1974
51 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
385
2015 count
Owner
County
County Highway Agency

About this bridge

North Greenfield 7 over N Greenfield 7 / Mud Run is a prestressed concrete box beam or girders - multiple carrying North Greenfield 7 over N Greenfield 7 / Mud Run in Huron County, Ohio. It was built in 1974, so it is 51 years old, older than the Ohio average of 47.3 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 385 vehicles a day, roughly 8% of them trucks, projected to reach 534 by 2035. The structure is 44 ft (13.4 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesNorth Greenfield 7
CrossesN Greenfield 7 / Mud Run
Location0.7 MI W of Thomas RD
RouteCounty Highway C0007
StateOhio
Coordinates41.13233, -82.75818
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating107.1 US tons
Inventory rating66 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic385 (2015)
Projected traffic534 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was North Greenfield 7 over N Greenfield 7 / Mud Run built?

It was built in 1974, making it 51 years old in 2025.

What condition is North Greenfield 7 over N Greenfield 7 / Mud Run 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 April 2024.

How much traffic does North Greenfield 7 over N Greenfield 7 / Mud Run carry?

About 385 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is North Greenfield 7 over N Greenfield 7 / Mud Run?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 25 ft wide.

Who owns North Greenfield 7 over N Greenfield 7 / Mud Run?

It is owned by the County Highway Agency.