US Bridges

CR 300N over Big Eagle Creek

Fair

Boone County, Indiana · 00.30 W of CR 1000 E · Structure no. 0600040

Built
1930
95 years old, rebuilt 1987
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
350
2017 count
Owner
County
County Highway Agency

About this bridge

CR 300N over Big Eagle Creek is a prestressed concrete box beam or girders - multiple carrying CR 300N over Big Eagle Creek in Boone County, Indiana. It was built in 1930 and reconstructed in 1987, so it is 95 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 350 vehicles a day, roughly 5% of them trucks, projected to reach 530 by 2037. The structure is 51 ft (15.6 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 300N
CrossesBig Eagle Creek
Location00.30 W of CR 1000 E
RouteCounty Highway 300
CountyBoone County
StateIndiana
Coordinates40.08471, -86.27243
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 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 rating40.3 US tons
Inventory rating23.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length51 ft (15.6 m)
Longest span48 ft (14.5 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2017)
Projected traffic530 by 2037
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 Big Eagle Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1987.

What condition is CR 300N over Big Eagle 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 September 2023.

How much traffic does CR 300N over Big Eagle Creek carry?

About 350 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is CR 300N over Big Eagle Creek?

The structure is 51 ft (15.6 m) long with a longest span of 48 ft (14.5 m) and a deck 24 ft wide.

Who owns CR 300N over Big Eagle Creek?

It is owned by the County Highway Agency.