US Bridges

SR 431 Ramp SB over US 31 & NB Off Ramp

Good

Hamilton County, Indiana · 0.27 S 146th ST · Structure no. 080458

Built
2012
13 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
386 ft
2 main spans
Daily traffic
12,640
2021 count
Owner
State
State Highway Agency

About this bridge

SR 431 Ramp SB over US 31 & NB Off Ramp is a steel continuous stringer/multi-beam or girder carrying SR 431 Ramp SB over US 31 & NB Off Ramp in Hamilton County, Indiana. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,640 vehicles a day, roughly 4% of them trucks, projected to reach 15,000 by 2041. The structure is 386 ft (117.6 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR 431 Ramp SB
CrossesUS 31 & NB Off Ramp
Location0.27 S 146th ST
RouteState Highway 431
CountyHamilton County
StateIndiana
Coordinates39.99559, -86.12625
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length386 ft (117.6 m)
Longest span197 ft (60.1 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,640 (2021)
Projected traffic15,000 by 2041
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 SR 431 Ramp SB over US 31 & NB Off Ramp built?

It was built in 2012, making it 13 years old in 2025.

What condition is SR 431 Ramp SB over US 31 & NB Off Ramp 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 2024.

How much traffic does SR 431 Ramp SB over US 31 & NB Off Ramp carry?

About 12,640 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is SR 431 Ramp SB over US 31 & NB Off Ramp?

The structure is 386 ft (117.6 m) long with a longest span of 197 ft (60.1 m) and a deck 40 ft wide.

Who owns SR 431 Ramp SB over US 31 & NB Off Ramp?

It is owned by the State Highway Agency.