US Bridges

CR 450E over Br Little Flatrock River

Fair

Rush County, Indiana · 00.20 S of CR 300 S · Structure no. 7000185

Built
1968
57 years old, rebuilt 1980
Condition
Fair
inspected May 2023
Type
Channel Beam
Concrete
Length
28 ft
1 main span
Daily traffic
275
2019 count
Owner
County
County Highway Agency

About this bridge

CR 450E over Br Little Flatrock River is a concrete channel beam carrying CR 450E over Br Little Flatrock River in Rush County, Indiana. It was built in 1968 and reconstructed in 1980, so it is 57 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 275 vehicles a day, roughly 5% of them trucks, projected to reach 400 by 2039. The structure is 28 ft (8.5 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 450E
CrossesBr Little Flatrock River
Location00.20 S of CR 300 S
RouteCounty Highway 91
CountyRush County
StateIndiana
Coordinates39.56771, -85.35824
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.5 US tons
Inventory rating41 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2019)
Projected traffic400 by 2039
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$860,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 450E over Br Little Flatrock River built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1980.

What condition is CR 450E over Br Little Flatrock 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 May 2023.

How much traffic does CR 450E over Br Little Flatrock River carry?

About 275 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is CR 450E over Br Little Flatrock River?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 22 ft wide.

Who owns CR 450E over Br Little Flatrock River?

It is owned by the County Highway Agency.