US Bridges

N Harrison Street over Big Blue River

Good

Shelby County, Indiana · 01.51 S I-74 · Structure no. 002440

Built
1994
31 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
315 ft
4 main spans
Daily traffic
15,000
2021 count
Owner
County
County Highway Agency

About this bridge

N Harrison Street over Big Blue River is a prestressed concrete continuous stringer/multi-beam or girder carrying N Harrison Street over Big Blue River in Shelby County, Indiana. It was built in 1994, so it is 31 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 15,000 vehicles a day, roughly 5% of them trucks, projected to reach 21,100 by 2041. The structure is 315 ft (96 m) long and 84 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesN Harrison Street
CrossesBig Blue River
Location01.51 S I-74
RouteCity Street 0
StateIndiana
Coordinates39.52911, -85.77766
Functional classUrban Other Principal Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating23.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length315 ft (96 m)
Longest span78 ft (23.8 m)
Deck width84 ft (25.5 m)
Roadway width53 ft (16.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2021)
Projected traffic21,100 by 2041
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 N Harrison Street over Big Blue River built?

It was built in 1994, making it 31 years old in 2025.

What condition is N Harrison Street over Big Blue River 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 2023.

How much traffic does N Harrison Street over Big Blue River carry?

About 15,000 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is N Harrison Street over Big Blue River?

The structure is 315 ft (96 m) long with a longest span of 78 ft (23.8 m) and a deck 84 ft wide.

Who owns N Harrison Street over Big Blue River?

It is owned by the County Highway Agency.