US Bridges

SR 18 over Ir 75

Good

Wood County, Ohio · JCT Ir 75 & SR 18 · Structure no. 8700826

Built
2004
21 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
242 ft
2 main spans
Daily traffic
4,073
2015 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Ir 75 is a steel continuous stringer/multi-beam or girder carrying SR 18 over Ir 75 in Wood County, Ohio. It was built in 2004, so it is 21 years old, younger 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 4,073 vehicles a day, roughly 12% of them trucks, projected to reach 5,653 by 2035. The structure is 242 ft (73.8 m) long and 70 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesSR 18
CrossesIr 75
LocationJCT Ir 75 & SR 18
RouteState Highway 18
StateOhio
Coordinates41.17266, -83.64973
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating42.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length242 ft (73.8 m)
Longest span120 ft (36.6 m)
Deck width70 ft (21.3 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,073 (2015)
Projected traffic5,653 by 2035
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed28 mi (45 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 18 over Ir 75 built?

It was built in 2004, making it 21 years old in 2025.

What condition is SR 18 over Ir 75 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 October 2023.

How much traffic does SR 18 over Ir 75 carry?

About 4,073 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is SR 18 over Ir 75?

The structure is 242 ft (73.8 m) long with a longest span of 120 ft (36.6 m) and a deck 70 ft wide.

Who owns SR 18 over Ir 75?

It is owned by the State Highway Agency.