US Bridges

Mcmillan ST over US42D;US42*N

Fair

Hamilton County, Ohio · 2.4 MI S of SR4 · Structure no. 3101231

Built
1937
88 years old
Condition
Fair
inspected November 2024
Type
Frame
Steel Continuous
Length
217 ft
3 main spans
Daily traffic
16,560
2015 count
Owner
State
State Highway Agency

About this bridge

Mcmillan ST over US42D;US42*N is a steel continuous frame carrying Mcmillan ST over US42D;US42*N in Hamilton County, Ohio. It was built in 1937, so it is 88 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 16,560 vehicles a day, roughly 7% of them trucks, projected to reach 29,283 by 2035. The structure is 217 ft (66.1 m) long and 60 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMcmillan ST
CrossesUS42D;US42*N
Location2.4 MI S of SR4
RouteCity Street 8516
CountyHamilton County
StateOhio
Coordinates39.12663, -84.5018
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating36.4 US tons

Structure

Structure typeFrame
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length217 ft (66.1 m)
Longest span117 ft (35.7 m)
Deck width60 ft (18.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,560 (2015)
Projected traffic29,283 by 2035
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mcmillan ST over US42D;US42*N built?

It was built in 1937, making it 88 years old in 2025.

What condition is Mcmillan ST over US42D;US42*N 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 November 2024.

How much traffic does Mcmillan ST over US42D;US42*N carry?

About 16,560 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Mcmillan ST over US42D;US42*N?

The structure is 217 ft (66.1 m) long with a longest span of 117 ft (35.7 m) and a deck 60 ft wide.

Who owns Mcmillan ST over US42D;US42*N?

It is owned by the State Highway Agency.