US Bridges

Milan-Oakville RD over US-23

Fair

Monroe County, Michigan · @ Washtenaw CO Line · Structure no. 000000000007087

Built
1950
75 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
143 ft
3 main spans
Daily traffic
881
1997 count
Owner
State
State Highway Agency

About this bridge

Milan-Oakville RD over US-23 is a steel stringer/multi-beam or girder carrying Milan-Oakville RD over US-23 in Monroe County, Michigan. It was built in 1950, so it is 75 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 881 vehicles a day, roughly 3% of them trucks, projected to reach 430 by 1977. The structure is 143 ft (43.5 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMilan-Oakville RD
CrossesUS-23
Location@ Washtenaw CO Line
RouteCity Street 8102
CountyMonroe County
StateMichigan
Coordinates42.08433, -83.67178
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 4 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.5 m)
Longest span80 ft (24.3 m)
Deck width34 ft (10.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic881 (1997)
Projected traffic430 by 1977
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$63,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Milan-Oakville RD over US-23 built?

It was built in 1950, making it 75 years old in 2025.

What condition is Milan-Oakville RD over US-23 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 January 2025.

How much traffic does Milan-Oakville RD over US-23 carry?

About 881 vehicles per day (1997 count), of which roughly 3% are trucks.

How long is Milan-Oakville RD over US-23?

The structure is 143 ft (43.5 m) long with a longest span of 80 ft (24.3 m) and a deck 34 ft wide.

Who owns Milan-Oakville RD over US-23?

It is owned by the State Highway Agency.