US Bridges

Township Road 912 over Aldridge Run

Good

Morgan County, Ohio · 200 Ft West of TR-51 · Structure no. 5836638

Built
1979
46 years old, rebuilt 1989
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
96
2015 count
Owner
County
County Highway Agency

About this bridge

Township Road 912 over Aldridge Run is a steel stringer/multi-beam or girder carrying Township Road 912 over Aldridge Run in Morgan County, Ohio. It was built in 1979 and reconstructed in 1989, so it is 46 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 96 vehicles a day, roughly 7% of them trucks, projected to reach 133 by 2042. The structure is 23 ft (7 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesTownship Road 912
CrossesAldridge Run
Location200 Ft West of TR-51
RouteCounty Highway 912
StateOhio
Coordinates39.54263, -81.83655
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length23 ft (7 m)
Longest span22 ft (6.6 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2015)
Projected traffic133 by 2042
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Township Road 912 over Aldridge Run built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 1989.

What condition is Township Road 912 over Aldridge Run 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 March 2024.

How much traffic does Township Road 912 over Aldridge Run carry?

About 96 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Township Road 912 over Aldridge Run?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.6 m) and a deck 14 ft wide.

Who owns Township Road 912 over Aldridge Run?

It is owned by the County Highway Agency.