US Bridges

US 31 over Monon Greenway

Good

Hamilton County, Indiana · 4.88 N I-465 · Structure no. 009601

Built
2014
11 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
55,805
2021 count
Owner
State
State Highway Agency

About this bridge

US 31 over Monon Greenway is a concrete culvert carrying US 31 over Monon Greenway in Hamilton County, Indiana. It was built in 2014, so it is 11 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 55,805 vehicles a day, roughly 12% of them trucks, projected to reach 82,340 by 2035. The structure is 21 ft (6.5 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 31
CrossesMonon Greenway
Location4.88 N I-465
RouteU.S. Route 31
StateIndiana
Coordinates39.98929, -86.13224
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
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating89.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length21 ft (6.5 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,805 (2021)
Projected traffic82,340 by 2035
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesPedestrian / bicycle
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 US 31 over Monon Greenway built?

It was built in 2014, making it 11 years old in 2025.

What condition is US 31 over Monon Greenway 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 US 31 over Monon Greenway carry?

About 55,805 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US 31 over Monon Greenway?

The structure is 21 ft (6.5 m) long with a longest span of 20 ft (6.1 m).

Who owns US 31 over Monon Greenway?

It is owned by the State Highway Agency.