US Bridges

SR 121 over Garrison Creek

Fair

Franklin County, Indiana · 06.48 N US 52 · Structure no. 025970

Built
1965
60 years old, rebuilt 2001
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
153 ft
3 main spans
Daily traffic
968
2021 count
Owner
State
State Highway Agency

About this bridge

SR 121 over Garrison Creek is a concrete continuous stringer/multi-beam or girder carrying SR 121 over Garrison Creek in Franklin County, Indiana. It was built in 1965 and reconstructed in 2001, so it is 60 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 968 vehicles a day, roughly 10% of them trucks, projected to reach 1,258 by 2035. The structure is 153 ft (46.7 m) long and 41 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesSR 121
CrossesGarrison Creek
Location06.48 N US 52
RouteState Highway 121
StateIndiana
Coordinates39.5257, -85.17656
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating31.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.7 m)
Longest span62 ft (18.8 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic968 (2021)
Projected traffic1,258 by 2035
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 121 over Garrison Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2001.

What condition is SR 121 over Garrison 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 December 2024.

How much traffic does SR 121 over Garrison Creek carry?

About 968 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is SR 121 over Garrison Creek?

The structure is 153 ft (46.7 m) long with a longest span of 62 ft (18.8 m) and a deck 41 ft wide.

Who owns SR 121 over Garrison Creek?

It is owned by the State Highway Agency.