US Bridges

Sherman RD over US-23

Fair

Monroe County, Michigan · 1.6 MI S of Washtenaw Col · Structure no. 000000000007085

Built
1961
64 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
208 ft
4 main spans
Daily traffic
957
1984 count
Owner
State
State Highway Agency

About this bridge

Sherman RD over US-23 is a steel stringer/multi-beam or girder carrying Sherman RD over US-23 in Monroe County, Michigan. It was built in 1961, so it is 64 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 957 vehicles a day, roughly 3% of them trucks, projected to reach 957 by 1977. The structure is 208 ft (63.4 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSherman RD
CrossesUS-23
Location1.6 MI S of Washtenaw Col
RouteCounty Highway 0
CountyMonroe County
StateMichigan
Coordinates42.0626, -83.67016
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 inspectionMay 2023
Inspection intervalevery 24 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 rating56.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length208 ft (63.4 m)
Longest span71 ft (21.6 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic957 (1984)
Projected traffic957 by 1977
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sherman RD over US-23 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Sherman 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 May 2023.

How much traffic does Sherman RD over US-23 carry?

About 957 vehicles per day (1984 count), of which roughly 3% are trucks.

How long is Sherman RD over US-23?

The structure is 208 ft (63.4 m) long with a longest span of 71 ft (21.6 m) and a deck 31 ft wide.

Who owns Sherman RD over US-23?

It is owned by the State Highway Agency.