US Bridges

CR 600 E over Back Creek

Fair

Wabash County, Indiana · 00.20 N of CR 500 S · Structure no. 8500235

Built
1979
46 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
225
2022 count
Owner
County
County Highway Agency

About this bridge

CR 600 E over Back Creek is a prestressed concrete box beam or girders - multiple carrying CR 600 E over Back Creek in Wabash County, Indiana. It was built in 1979, so it is 46 years old, younger 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 225 vehicles a day, roughly 5% of them trucks, projected to reach 300 by 2042. The structure is 53 ft (16.3 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 600 E
CrossesBack Creek
Location00.20 N of CR 500 S
RouteCounty Highway 77
StateIndiana
Coordinates40.75592, -85.67794
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating16.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length53 ft (16.3 m)
Longest span48 ft (14.7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2022)
Projected traffic300 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 CR 600 E over Back Creek built?

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

What condition is CR 600 E over Back Creek 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 CR 600 E over Back Creek carry?

About 225 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is CR 600 E over Back Creek?

The structure is 53 ft (16.3 m) long with a longest span of 48 ft (14.7 m) and a deck 27 ft wide.

Who owns CR 600 E over Back Creek?

It is owned by the County Highway Agency.