US Bridges

CR 71 over Fish Creek

Fair

DeKalb County, Indiana · 00.40 S of CR 4A · Structure no. 1700088

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

CR 71 over Fish Creek is a prestressed concrete box beam or girders - multiple carrying CR 71 over Fish Creek in DeKalb County, Indiana. It was built in 1980, so it is 45 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 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 100 vehicles a day, roughly 4% of them trucks, projected to reach 150 by 2042. The structure is 87 ft (26.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 71
CrossesFish Creek
Location00.40 S of CR 4A
RouteCounty Highway 257
StateIndiana
Coordinates41.51505, -84.85375
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment6: Equal to present minimum criteria
Operating rating98.7 US tons
Inventory rating59.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span85 ft (25.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic150 by 2042
Trucks4%
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 71 over Fish Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is CR 71 over Fish 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 October 2024.

How much traffic does CR 71 over Fish Creek carry?

About 100 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is CR 71 over Fish Creek?

The structure is 87 ft (26.5 m) long with a longest span of 85 ft (25.9 m) and a deck 24 ft wide.

Who owns CR 71 over Fish Creek?

It is owned by the County Highway Agency.