US Bridges

SR 13 over Middle Fork

Good

Grant County, Indiana · 01.92 S SR 26 · Structure no. 003390

Built
1978
47 years old, rebuilt 2016
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
1,450
2021 count
Owner
State
State Highway Agency

About this bridge

SR 13 over Middle Fork is a concrete continuous slab carrying SR 13 over Middle Fork in Grant County, Indiana. It was built in 1978 and reconstructed in 2016, so it is 47 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 1,450 vehicles a day, roughly 9% of them trucks, projected to reach 1,800 by 2036. The structure is 102 ft (31.1 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR 13
CrossesMiddle Fork
Location01.92 S SR 26
RouteState Highway 13
StateIndiana
Coordinates40.39913, -85.84333
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating58.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length102 ft (31.1 m)
Longest span40 ft (12.1 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2021)
Projected traffic1,800 by 2036
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 13 over Middle Fork built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2016.

What condition is SR 13 over Middle Fork 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 13 over Middle Fork carry?

About 1,450 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is SR 13 over Middle Fork?

The structure is 102 ft (31.1 m) long with a longest span of 40 ft (12.1 m) and a deck 46 ft wide.

Who owns SR 13 over Middle Fork?

It is owned by the State Highway Agency.