US Bridges

Ir 75 over Laidlaw Avenue

Fair

Hamilton County, Ohio · .3 MI N of SR 562 · Structure no. 3110087

Built
1959
66 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
147 ft
3 main spans
Daily traffic
148,474
2015 count
Owner
State
State Highway Agency

About this bridge

Ir 75 over Laidlaw Avenue is a steel continuous stringer/multi-beam or girder carrying Ir 75 over Laidlaw Avenue in Hamilton County, Ohio. It was built in 1959, so it is 66 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 148,474 vehicles a day, roughly 16% of them trucks, projected to reach 206,082 by 2035. The structure is 147 ft (44.8 m) long and 98 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIr 75
CrossesLaidlaw Avenue
Location.3 MI N of SR 562
RouteInterstate 75
CountyHamilton County
StateOhio
Coordinates39.17906, -84.48631
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating46.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length147 ft (44.8 m)
Longest span60 ft (18.3 m)
Deck width98 ft (29.8 m)
Roadway width91 ft (27.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic148,474 (2015)
Projected traffic206,082 by 2035
Trucks16%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ir 75 over Laidlaw Avenue built?

It was built in 1959, making it 66 years old in 2025.

What condition is Ir 75 over Laidlaw Avenue in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Ir 75 over Laidlaw Avenue carry?

About 148,474 vehicles per day (2015 count), of which roughly 16% are trucks.

How long is Ir 75 over Laidlaw Avenue?

The structure is 147 ft (44.8 m) long with a longest span of 60 ft (18.3 m) and a deck 98 ft wide.

Who owns Ir 75 over Laidlaw Avenue?

It is owned by the State Highway Agency.