US Bridges

WB Ir 275 over Mill Creek

Good

Hamilton County, Ohio · .5 MI E of Ir 75 · Structure no. 3112543

Built
1960
65 years old, rebuilt 2009
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
263 ft
3 main spans
Daily traffic
50,850
2018 count
Owner
State
State Highway Agency

About this bridge

WB Ir 275 over Mill Creek is a steel continuous stringer/multi-beam or girder carrying WB Ir 275 over Mill Creek in Hamilton County, Ohio. It was built in 1960 and reconstructed in 2009, so it is 65 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 50,850 vehicles a day, roughly 6% of them trucks, projected to reach 70,580 by 2038. The structure is 263 ft (80.2 m) long and 63 ft wide.

CarriesWB Ir 275
CrossesMill Creek
Location.5 MI E of Ir 75
RouteInterstate 275
StateOhio
Coordinates39.28847, -84.43415
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length263 ft (80.2 m)
Longest span100 ft (30.5 m)
Deck width63 ft (19.1 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,850 (2018)
Projected traffic70,580 by 2038
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was WB Ir 275 over Mill Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2009.

What condition is WB Ir 275 over Mill Creek 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 March 2023.

How much traffic does WB Ir 275 over Mill Creek carry?

About 50,850 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is WB Ir 275 over Mill Creek?

The structure is 263 ft (80.2 m) long with a longest span of 100 ft (30.5 m) and a deck 63 ft wide.

Who owns WB Ir 275 over Mill Creek?

It is owned by the State Highway Agency.