US Bridges

SR 135 over Unt Middle Fork Salt CR

Good

Brown County, Indiana · 09.03 S SR 46 · Structure no. 026585

Built
2014
11 years old
Condition
Good
inspected December 2023
Type
Culvert
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
350
2013 count
Owner
State
State Highway Agency

About this bridge

SR 135 over Unt Middle Fork Salt CR is a prestressed concrete culvert carrying SR 135 over Unt Middle Fork Salt CR in Brown County, Indiana. It was built in 2014, so it is 11 years old, younger 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 350 vehicles a day, roughly 5% of them trucks, projected to reach 420 by 2034. The structure is 24 ft (7.4 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSR 135
CrossesUnt Middle Fork Salt CR
Location09.03 S SR 46
RouteState Highway 135
CountyBrown County
StateIndiana
Coordinates39.10082, -86.20813
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length24 ft (7.4 m)
Longest span22 ft (6.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2013)
Projected traffic420 by 2034
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 135 over Unt Middle Fork Salt CR built?

It was built in 2014, making it 11 years old in 2025.

What condition is SR 135 over Unt Middle Fork Salt CR 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 December 2023.

How much traffic does SR 135 over Unt Middle Fork Salt CR carry?

About 350 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is SR 135 over Unt Middle Fork Salt CR?

The structure is 24 ft (7.4 m) long with a longest span of 22 ft (6.7 m) and a deck 28 ft wide.

Who owns SR 135 over Unt Middle Fork Salt CR?

It is owned by the State Highway Agency.