US Bridges

Carroll 173 over Carroll / CO Di 10

Good

Huron County, Ohio · 0.4 MI S of Court RD · Structure no. 3938328

Built
1993
32 years old
Condition
Good
inspected November 2024
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
209
2015 count
Owner
County
County Highway Agency

About this bridge

Carroll 173 over Carroll / CO Di 10 is a concrete frame carrying Carroll 173 over Carroll / CO Di 10 in Huron County, Ohio. It was built in 1993, so it is 32 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 209 vehicles a day, roughly 7% of them trucks, projected to reach 290 by 2035. The structure is 23 ft (7 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCarroll 173
CrossesCarroll / CO Di 10
Location0.4 MI S of Court RD
RouteCounty Highway T0173
StateOhio
Coordinates41.17098, -82.47792
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209 (2015)
Projected traffic290 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Carroll 173 over Carroll / CO Di 10 built?

It was built in 1993, making it 32 years old in 2025.

What condition is Carroll 173 over Carroll / CO Di 10 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 November 2024.

How much traffic does Carroll 173 over Carroll / CO Di 10 carry?

About 209 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Carroll 173 over Carroll / CO Di 10?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 32 ft wide.

Who owns Carroll 173 over Carroll / CO Di 10?

It is owned by the County Highway Agency.