US Bridges

Southport Road over SR37(I69) Nb/Sb

Good

Marion County, Indiana · 2.33 S I-465 · Structure no. 080858

Built
2022
3 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
178 ft
2 main spans
Daily traffic
30,000
2022 count
Owner
State
State Highway Agency

About this bridge

Southport Road over SR37(I69) Nb/Sb is a prestressed concrete continuous tee beam carrying Southport Road over SR37(I69) Nb/Sb in Marion County, Indiana. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30,000 vehicles a day, roughly 3% of them trucks, projected to reach 30,000 by 2045. The structure is 178 ft (54.4 m) long and 113 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSouthport Road
CrossesSR37(I69) Nb/Sb
Location2.33 S I-465
RouteCity Street 0
CountyMarion County
StateIndiana
Coordinates39.66433, -86.19616
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length178 ft (54.4 m)
Longest span88 ft (26.9 m)
Deck width113 ft (34.5 m)
Roadway width97 ft (29.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,000 (2022)
Projected traffic30,000 by 2045
Trucks3%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 Southport Road over SR37(I69) Nb/Sb built?

It was built in 2022, making it 3 years old in 2025.

What condition is Southport Road over SR37(I69) Nb/Sb 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 September 2023.

How much traffic does Southport Road over SR37(I69) Nb/Sb carry?

About 30,000 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Southport Road over SR37(I69) Nb/Sb?

The structure is 178 ft (54.4 m) long with a longest span of 88 ft (26.9 m) and a deck 113 ft wide.

Who owns Southport Road over SR37(I69) Nb/Sb?

It is owned by the State Highway Agency.