US Bridges

CR 300 South over Little Conns Creek

FairPosted for load

Shelby County, Indiana · 00.30 W of CR 800 E · Structure no. 7300037

Built
1958
67 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
100
2021 count
Owner
County
County Highway Agency

About this bridge

CR 300 South over Little Conns Creek is a steel stringer/multi-beam or girder carrying CR 300 South over Little Conns Creek in Shelby County, Indiana. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2041. The structure is 25 ft (7.5 m) long and 22 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCR 300 South
CrossesLittle Conns Creek
Location00.30 W of CR 800 E
RouteCounty Highway 178
StateIndiana
Coordinates39.48262, -85.63608
Functional classRural Local

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 statusPosted for load 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.6 US tons
Inventory rating21.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.5 m)
Longest span22 ft (6.7 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic150 by 2041
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$250,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 300 South over Little Conns Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is CR 300 South over Little Conns 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 November 2023.

How much traffic does CR 300 South over Little Conns Creek carry?

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

How long is CR 300 South over Little Conns Creek?

The structure is 25 ft (7.5 m) long with a longest span of 22 ft (6.7 m) and a deck 22 ft wide.

Who owns CR 300 South over Little Conns Creek?

It is owned by the County Highway Agency.