US Bridges

CR 550W over Little Walnut Creek

Good

Putnam County, Indiana · 00.60 S of CR 350 N · Structure no. 6700082

Built
1993
32 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
75 ft
3 main spans
Daily traffic
160
2023 count
Owner
County
County Highway Agency

About this bridge

CR 550W over Little Walnut Creek is a prestressed concrete box beam or girders - multiple carrying CR 550W over Little Walnut Creek in Putnam County, Indiana. It was built in 1993, so it is 32 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 160 vehicles a day, roughly 6% of them trucks, projected to reach 220 by 2043. The structure is 75 ft (22.8 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 550W
CrossesLittle Walnut Creek
Location00.60 S of CR 350 N
RouteCounty Highway 385
StateIndiana
Coordinates39.71043, -86.95532
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.5 US tons
Inventory rating45.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length75 ft (22.8 m)
Longest span25 ft (7.6 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2023)
Projected traffic220 by 2043
Trucks6%
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 550W over Little Walnut Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is CR 550W over Little Walnut Creek 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 March 2023.

How much traffic does CR 550W over Little Walnut Creek carry?

About 160 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is CR 550W over Little Walnut Creek?

The structure is 75 ft (22.8 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.

Who owns CR 550W over Little Walnut Creek?

It is owned by the County Highway Agency.