US Bridges

Wilmington RD C7 over I71

Good

Warren County, Ohio · 4.2 MI N of SR 123 · Structure no. 8302316

Built
1964
61 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
376 ft
4 main spans
Daily traffic
2,252
2015 count
Owner
State
State Highway Agency

About this bridge

Wilmington RD C7 over I71 is a steel continuous stringer/multi-beam or girder carrying Wilmington RD C7 over I71 in Warren County, Ohio. It was built in 1964, so it is 61 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 2,252 vehicles a day, roughly 8% of them trucks, projected to reach 54,289 by 2035. The structure is 376 ft (114.7 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWilmington RD C7
CrossesI71
Location4.2 MI N of SR 123
RouteCounty Highway C0007
StateOhio
Coordinates39.42981, -84.07949
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length376 ft (114.7 m)
Longest span112 ft (34.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,252 (2015)
Projected traffic54,289 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Wilmington RD C7 over I71 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Wilmington RD C7 over I71 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 June 2023.

How much traffic does Wilmington RD C7 over I71 carry?

About 2,252 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Wilmington RD C7 over I71?

The structure is 376 ft (114.7 m) long with a longest span of 112 ft (34.1 m) and a deck 35 ft wide.

Who owns Wilmington RD C7 over I71?

It is owned by the State Highway Agency.