US Bridges

Walnut ST SB Ramp over I-69 Nb/Sb

Good

Monroe County, Indiana · 02.92 N SR 46 · Structure no. 012190

Built
1972
53 years old, rebuilt 2014
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
267 ft
2 main spans
Daily traffic
3,745
2022 count
Owner
State
State Highway Agency

About this bridge

Walnut ST SB Ramp over I-69 Nb/Sb is a steel continuous stringer/multi-beam or girder carrying Walnut ST SB Ramp over I-69 Nb/Sb in Monroe County, Indiana. It was built in 1972 and reconstructed in 2014, so it is 53 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 3,745 vehicles a day, roughly 1% of them trucks, projected to reach 3,778 by 2033. The structure is 267 ft (81.3 m) long and 31 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesWalnut ST SB Ramp
CrossesI-69 Nb/Sb
Location02.92 N SR 46
RouteCounty Highway 0
StateIndiana
Coordinates39.23397, -86.54127
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length267 ft (81.3 m)
Longest span135 ft (41.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,745 (2022)
Projected traffic3,778 by 2033
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Walnut ST SB Ramp over I-69 Nb/Sb built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2014.

What condition is Walnut ST SB Ramp over I-69 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 February 2023.

How much traffic does Walnut ST SB Ramp over I-69 Nb/Sb carry?

About 3,745 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Walnut ST SB Ramp over I-69 Nb/Sb?

The structure is 267 ft (81.3 m) long with a longest span of 135 ft (41.1 m) and a deck 31 ft wide.

Who owns Walnut ST SB Ramp over I-69 Nb/Sb?

It is owned by the State Highway Agency.