US Bridges

SR 103 over Flatrock River

Good

Henry County, Indiana · 02.94 N US 40 · Structure no. 025240

Built
1960
65 years old, rebuilt 1999
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
166 ft
3 main spans
Daily traffic
2,671
2021 count
Owner
State
State Highway Agency

About this bridge

SR 103 over Flatrock River is a steel continuous stringer/multi-beam or girder carrying SR 103 over Flatrock River in Henry County, Indiana. It was built in 1960 and reconstructed in 1999, so it is 65 years old, older 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 2,671 vehicles a day, roughly 3% of them trucks, projected to reach 3,000 by 2041. The structure is 166 ft (50.6 m) long and 41 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR 103
CrossesFlatrock River
Location02.94 N US 40
RouteState Highway 103
StateIndiana
Coordinates39.84957, -85.35301
Functional classRural Major 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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length166 ft (50.6 m)
Longest span70 ft (21.4 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,671 (2021)
Projected traffic3,000 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 103 over Flatrock River built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1999.

What condition is SR 103 over Flatrock River 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 November 2024.

How much traffic does SR 103 over Flatrock River carry?

About 2,671 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is SR 103 over Flatrock River?

The structure is 166 ft (50.6 m) long with a longest span of 70 ft (21.4 m) and a deck 41 ft wide.

Who owns SR 103 over Flatrock River?

It is owned by the State Highway Agency.