US Bridges

CR 650S over Flatrock River

FairPosted for load

Rush County, Indiana · 00.10 E of CR 475 W · Structure no. 7000132

Built
1888
137 years old, rebuilt 2003
Condition
Fair
inspected April 2023
Type
Truss - Thru
Wood or Timber
Length
187 ft
1 main span
Daily traffic
100
2019 count
Owner
County
County Highway Agency

About this bridge

CR 650S over Flatrock River is a wood or timber truss - thru carrying CR 650S over Flatrock River in Rush County, Indiana. It was built in 1888 and reconstructed in 2003, so it is 137 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2039. The structure is 187 ft (57 m) long and 16 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCR 650S
CrossesFlatrock River
Location00.10 E of CR 475 W
RouteCounty Highway 18
CountyRush County
StateIndiana
Coordinates39.51727, -85.5305
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating9.9 US tons
Inventory rating9.9 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length187 ft (57 m)
Longest span181 ft (55.2 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic100 (2019)
Projected traffic150 by 2039
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$840,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 650S over Flatrock River built?

It was built in 1888, making it 137 years old in 2025. It was reconstructed in 2003.

What condition is CR 650S 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 650S over Flatrock River carry?

About 100 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is CR 650S over Flatrock River?

The structure is 187 ft (57 m) long with a longest span of 181 ft (55.2 m) and a deck 16 ft wide.

Who owns CR 650S over Flatrock River?

It is owned by the County Highway Agency.