US Bridges

CR 300N over Little Blue River

Good

Rush County, Indiana · 00.30 E of CR 700 W · Structure no. 7000104

Built
2005
20 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
141 ft
3 main spans
Daily traffic
850
2019 count
Owner
County
County Highway Agency

About this bridge

CR 300N over Little Blue River is a prestressed concrete stringer/multi-beam or girder carrying CR 300N over Little Blue River in Rush County, Indiana. It was built in 2005, so it is 20 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 850 vehicles a day, roughly 5% of them trucks, projected to reach 1,140 by 2039. The structure is 141 ft (43.1 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 300N
CrossesLittle Blue River
Location00.30 E of CR 700 W
RouteCounty Highway 42
StateIndiana
Coordinates39.65474, -85.57087
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
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 rating67.1 US tons
Inventory rating36.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length141 ft (43.1 m)
Longest span48 ft (14.7 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2019)
Projected traffic1,140 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 300N over Little Blue River built?

It was built in 2005, making it 20 years old in 2025.

What condition is CR 300N over Little Blue River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does CR 300N over Little Blue River carry?

About 850 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is CR 300N over Little Blue River?

The structure is 141 ft (43.1 m) long with a longest span of 48 ft (14.7 m) and a deck 29 ft wide.

Who owns CR 300N over Little Blue River?

It is owned by the County Highway Agency.