US Bridges

CR 775E over Little Blue River

Fair

Shelby County, Indiana · 00.10 N of CR 500 N · Structure no. 7300035

Built
1950
75 years old, rebuilt 1990
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
126 ft
4 main spans
Daily traffic
100
2021 count
Owner
County
County Highway Agency

About this bridge

CR 775E over Little Blue River is a prestressed concrete box beam or girders - multiple carrying CR 775E over Little Blue River in Shelby County, Indiana. It was built in 1950 and reconstructed in 1990, so it is 75 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 175 by 2041. The structure is 126 ft (38.4 m) long and 16 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCR 775E
CrossesLittle Blue River
Location00.10 N of CR 500 N
RouteCounty Highway 77
StateIndiana
Coordinates39.59979, -85.6368
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
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 geometry8: Equal to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating65 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadUnknown
Structure length126 ft (38.4 m)
Longest span37 ft (11.2 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic175 by 2041
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 CR 775E over Little Blue River built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1990.

What condition is CR 775E over Little Blue River 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 November 2023.

How much traffic does CR 775E over Little Blue River carry?

About 100 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is CR 775E over Little Blue River?

The structure is 126 ft (38.4 m) long with a longest span of 37 ft (11.2 m) and a deck 16 ft wide.

Who owns CR 775E over Little Blue River?

It is owned by the County Highway Agency.