US Bridges

SR 13 over Grassy Fork

Good

Grant County, Indiana · 01.23 N SR 26 · Structure no. 003400

Built
1933
92 years old, rebuilt 2001
Condition
Good
inspected May 2023
Type
Arch - Deck
Concrete
Length
68 ft
1 main span
Daily traffic
1,619
2020 count
Owner
State
State Highway Agency

About this bridge

SR 13 over Grassy Fork is a concrete arch - deck carrying SR 13 over Grassy Fork in Grant County, Indiana. It was built in 1933 and reconstructed in 2001, so it is 92 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 1,619 vehicles a day, roughly 10% of them trucks, projected to reach 5,532 by 2030. The structure is 68 ft (20.7 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 13
CrossesGrassy Fork
Location01.23 N SR 26
RouteState Highway 13
CountyGrant County
StateIndiana
Coordinates40.4393, -85.82443
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating34.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span36 ft (10.9 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,619 (2020)
Projected traffic5,532 by 2030
Trucks10%
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 Grassy Fork built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2001.

What condition is SR 13 over Grassy 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 May 2023.

How much traffic does SR 13 over Grassy Fork carry?

About 1,619 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is SR 13 over Grassy Fork?

The structure is 68 ft (20.7 m) long with a longest span of 36 ft (10.9 m) and a deck 46 ft wide.

Who owns SR 13 over Grassy Fork?

It is owned by the State Highway Agency.