US Bridges

CR 300N over Black Creek-Prairie Br

Fair

Grant County, Indiana · 00.70 MI E of SR 5 · Structure no. 2700033

Built
1990
35 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
180
2021 count
Owner
County
County Highway Agency

About this bridge

CR 300N over Black Creek-Prairie Br is a concrete continuous slab carrying CR 300N over Black Creek-Prairie Br in Grant County, Indiana. It was built in 1990, so it is 35 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 6 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 180 vehicles a day, roughly 5% of them trucks, projected to reach 280 by 2041. The structure is 71 ft (21.7 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 300N
CrossesBlack Creek-Prairie Br
Location00.70 MI E of SR 5
RouteCounty Highway 192
CountyGrant County
StateIndiana
Coordinates40.59581, -85.49111
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 rating89 US tons
Inventory rating68.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length71 ft (21.7 m)
Longest span28 ft (8.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2021)
Projected traffic280 by 2041
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 Black Creek-Prairie Br built?

It was built in 1990, making it 35 years old in 2025.

What condition is CR 300N over Black Creek-Prairie Br 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 October 2023.

How much traffic does CR 300N over Black Creek-Prairie Br carry?

About 180 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is CR 300N over Black Creek-Prairie Br?

The structure is 71 ft (21.7 m) long with a longest span of 28 ft (8.4 m) and a deck 27 ft wide.

Who owns CR 300N over Black Creek-Prairie Br?

It is owned by the County Highway Agency.