US Bridges

Conant Rd. over Aug.River Conant RD

Fair

Allen County, Ohio · 0.24 MI N of SR 117 · Structure no. 0230162

Built
1967
58 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
200 ft
3 main spans
Daily traffic
901
2015 count
Owner
County
County Highway Agency

About this bridge

Conant Rd. over Aug.River Conant RD is a steel continuous stringer/multi-beam or girder carrying Conant Rd. over Aug.River Conant RD in Allen County, Ohio. It was built in 1967, so it is 58 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 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 901 vehicles a day, roughly 8% of them trucks, projected to reach 1,251 by 2035. The structure is 200 ft (61 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesConant Rd.
CrossesAug.River Conant RD
Location0.24 MI N of SR 117
RouteCounty Highway C0071
CountyAllen County
StateOhio
Coordinates40.71097, -84.28042
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating26.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length200 ft (61 m)
Longest span75 ft (22.9 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic901 (2015)
Projected traffic1,251 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Conant Rd. over Aug.River Conant RD built?

It was built in 1967, making it 58 years old in 2025.

What condition is Conant Rd. over Aug.River Conant RD 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 May 2024.

How much traffic does Conant Rd. over Aug.River Conant RD carry?

About 901 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Conant Rd. over Aug.River Conant RD?

The structure is 200 ft (61 m) long with a longest span of 75 ft (22.9 m) and a deck 30 ft wide.

Who owns Conant Rd. over Aug.River Conant RD?

It is owned by the County Highway Agency.