US Bridges

CR 700W over Flatrock River

Fair

Decatur County, Indiana · 00.50 N of CR 550 N · Structure no. 1600049

Built
1966
59 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
277 ft
5 main spans
Daily traffic
390
2017 count
Owner
County
County Highway Agency

About this bridge

CR 700W over Flatrock River is a prestressed concrete stringer/multi-beam or girder carrying CR 700W over Flatrock River in Decatur County, Indiana. It was built in 1966, so it is 59 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 390 vehicles a day, roughly 10% of them trucks, projected to reach 610 by 2037. The structure is 277 ft (84.4 m) long and 31 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCR 700W
CrossesFlatrock River
Location00.50 N of CR 550 N
RouteCity Street 21
CountyDecatur County
StateIndiana
Coordinates39.42347, -85.62515
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length277 ft (84.4 m)
Longest span74 ft (22.7 m)
Deck width31 ft (9.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2017)
Projected traffic610 by 2037
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$401,000 (2027 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 700W over Flatrock River built?

It was built in 1966, making it 59 years old in 2025.

What condition is CR 700W over Flatrock 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 April 2023.

How much traffic does CR 700W over Flatrock River carry?

About 390 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is CR 700W over Flatrock River?

The structure is 277 ft (84.4 m) long with a longest span of 74 ft (22.7 m) and a deck 31 ft wide.

Who owns CR 700W over Flatrock River?

It is owned by the County Highway Agency.