US Bridges

Main ST over Old Mill Race

Fair

Wabash County, Indiana · 00.10 W of CR 325 E · Structure no. 8500530

Built
1954
71 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
32 ft
1 main span
Daily traffic
600
2014 count
Owner
County
County Highway Agency

About this bridge

Main ST over Old Mill Race is a concrete stringer/multi-beam or girder carrying Main ST over Old Mill Race in Wabash County, Indiana. It was built in 1954, so it is 71 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 890 by 2034. The structure is 32 ft (9.9 m) long and 27 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMain ST
CrossesOld Mill Race
Location00.10 W of CR 325 E
RouteCounty Highway 0
StateIndiana
Coordinates41.03345, -85.73779
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.9 US tons
Inventory rating35.9 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.9 m)
Longest span30 ft (9.2 m)
Deck width27 ft (8.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2014)
Projected traffic890 by 2034
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Main ST over Old Mill Race built?

It was built in 1954, making it 71 years old in 2025.

What condition is Main ST over Old Mill Race 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 Main ST over Old Mill Race carry?

About 600 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Main ST over Old Mill Race?

The structure is 32 ft (9.9 m) long with a longest span of 30 ft (9.2 m) and a deck 27 ft wide.

Who owns Main ST over Old Mill Race?

It is owned by the County Highway Agency.