US Bridges

CR 400 North over Eel River

Fair

Miami County, Indiana · 0.20 E of Old US 31 · Structure no. 5200031

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
239 ft
3 main spans
Daily traffic
900
2011 count
Owner
County
County Highway Agency

About this bridge

CR 400 North over Eel River is a prestressed concrete box beam or girders - multiple carrying CR 400 North over Eel River in Miami County, Indiana. It was built in 1965, so it is 60 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 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 900 vehicles a day, roughly 5% of them trucks, projected to reach 1,500 by 2031. The structure is 239 ft (72.9 m) long and 29 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCR 400 North
CrossesEel River
Location0.20 E of Old US 31
RouteCounty Highway 60
StateIndiana
Coordinates40.82209, -86.11325
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating80.9 US tons
Inventory rating42.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length239 ft (72.9 m)
Longest span79 ft (24.1 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2011)
Projected traffic1,500 by 2031
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$210,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 400 North over Eel River built?

It was built in 1965, making it 60 years old in 2025.

What condition is CR 400 North over Eel 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 400 North over Eel River carry?

About 900 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is CR 400 North over Eel River?

The structure is 239 ft (72.9 m) long with a longest span of 79 ft (24.1 m) and a deck 29 ft wide.

Who owns CR 400 North over Eel River?

It is owned by the County Highway Agency.