US Bridges

Rmp MCMILLAN-I71N over Relief

Good

Hamilton County, Ohio · .6 MI N of Usr 42 · Structure no. 3114295

Built
1972
53 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
160 ft
3 main spans
Daily traffic
7,730
2017 count
Owner
State
State Highway Agency

About this bridge

Rmp MCMILLAN-I71N over Relief is a steel continuous stringer/multi-beam or girder carrying Rmp MCMILLAN-I71N over Relief in Hamilton County, Ohio. It was built in 1972, so it is 53 years old, older than the Ohio average of 47.3 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 7,730 vehicles a day, roughly 3% of them trucks, projected to reach 8,812 by 2037. The structure is 160 ft (48.8 m) long and 37 ft wide.

CarriesRmp MCMILLAN-I71N
CrossesRelief
Location.6 MI N of Usr 42
RouteInterstate 71
StateOhio
Coordinates39.12656, -84.49672
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating65.7 US tons
Inventory rating50.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span60 ft (18.3 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,730 (2017)
Projected traffic8,812 by 2037
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rmp MCMILLAN-I71N over Relief built?

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

What condition is Rmp MCMILLAN-I71N over Relief 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 Rmp MCMILLAN-I71N over Relief carry?

About 7,730 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Rmp MCMILLAN-I71N over Relief?

The structure is 160 ft (48.8 m) long with a longest span of 60 ft (18.3 m) and a deck 37 ft wide.

Who owns Rmp MCMILLAN-I71N over Relief?

It is owned by the State Highway Agency.