US Bridges

SR 45 over Plum Creek

Good

Brown County, Indiana · 05.79 S SR 135 · Structure no. 016860

Built
1970
55 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
42 ft
1 main span
Daily traffic
2,034
2004 count
Owner
State
State Highway Agency

About this bridge

SR 45 over Plum Creek is a concrete culvert carrying SR 45 over Plum Creek in Brown County, Indiana. It was built in 1970, so it is 55 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 2,034 vehicles a day, roughly 10% of them trucks, projected to reach 3,401 by 2031. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 7.5 mi (12 km).

CarriesSR 45
CrossesPlum Creek
Location05.79 S SR 135
RouteState Highway 45
StateIndiana
Coordinates39.25841, -86.34094
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span40 ft (12.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,034 (2004)
Projected traffic3,401 by 2031
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 45 over Plum Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR 45 over Plum Creek 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 February 2024.

How much traffic does SR 45 over Plum Creek carry?

About 2,034 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is SR 45 over Plum Creek?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.1 m).

Who owns SR 45 over Plum Creek?

It is owned by the State Highway Agency.