US Bridges

CR 350S over Flat Creek

Fair

Dubois County, Indiana · 01.10 E of SR 162 · Structure no. 1900079

Built
1969
56 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
86 ft
1 main span
Daily traffic
446
2012 count
Owner
County
County Highway Agency

About this bridge

CR 350S over Flat Creek is a prestressed concrete box beam or girders - multiple carrying CR 350S over Flat Creek in Dubois County, Indiana. It was built in 1969, so it is 56 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 446 vehicles a day, roughly 6% of them trucks, projected to reach 520 by 2032. The structure is 86 ft (26.1 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCR 350S
CrossesFlat Creek
Location01.10 E of SR 162
RouteCounty Highway 162
CountyDubois County
StateIndiana
Coordinates38.32904, -86.85926
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.8 US tons
Inventory rating36.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length86 ft (26.1 m)
Longest span82 ft (25 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic446 (2012)
Projected traffic520 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$450,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 350S over Flat Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is CR 350S over Flat 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 February 2024.

How much traffic does CR 350S over Flat Creek carry?

About 446 vehicles per day (2012 count), of which roughly 6% are trucks.

How long is CR 350S over Flat Creek?

The structure is 86 ft (26.1 m) long with a longest span of 82 ft (25 m) and a deck 25 ft wide.

Who owns CR 350S over Flat Creek?

It is owned by the County Highway Agency.