US Bridges

SR 29 over Rock Creek

Fair

Carroll County, Indiana · 00.34 S SR 218 N JCT · Structure no. 007960

Built
1992
33 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
112 ft
3 main spans
Daily traffic
4,279
2004 count
Owner
State
State Highway Agency

About this bridge

SR 29 over Rock Creek is a prestressed concrete continuous box beam or girders - single or spread carrying SR 29 over Rock Creek in Carroll County, Indiana. It was built in 1992, so it is 33 years old, younger 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 6 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 4,279 vehicles a day, roughly 10% of them trucks, projected to reach 5,926 by 2030. The structure is 112 ft (34.1 m) long and 48 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 29
CrossesRock Creek
Location00.34 S SR 218 N JCT
RouteState Highway 29
CountyCarroll County
StateIndiana
Coordinates40.65838, -86.39157
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating27.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length112 ft (34.1 m)
Longest span37 ft (11.2 m)
Deck width48 ft (14.7 m)
Roadway width45 ft (13.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,279 (2004)
Projected traffic5,926 by 2030
Trucks10%
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

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 29 over Rock Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR 29 over Rock 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 November 2023.

How much traffic does SR 29 over Rock Creek carry?

About 4,279 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is SR 29 over Rock Creek?

The structure is 112 ft (34.1 m) long with a longest span of 37 ft (11.2 m) and a deck 48 ft wide.

Who owns SR 29 over Rock Creek?

It is owned by the State Highway Agency.