US Bridges

Hall ST over Mill Race

FairPosted for load

Eaton County, Michigan · In City of Eaton Rapids · Structure no. 000000000002443

Built
1975
50 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
465
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hall ST over Mill Race is a prestressed concrete box beam or girders - multiple carrying Hall ST over Mill Race in Eaton County, Michigan. It was built in 1975, so it is 50 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 465 vehicles a day, roughly 3% of them trucks, projected to reach 535 by 2038. The structure is 47 ft (14.3 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHall ST
CrossesMill Race
LocationIn City of Eaton Rapids
RouteCity Street 0
CountyEaton County
StateMichigan
Coordinates42.51044, -84.65698
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating26.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length47 ft (14.3 m)
Longest span46 ft (13.9 m)
Deck width40 ft (12.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic465 (2018)
Projected traffic535 by 2038
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hall ST over Mill Race built?

It was built in 1975, making it 50 years old in 2025.

What condition is Hall ST over Mill Race 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 Hall ST over Mill Race carry?

About 465 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Hall ST over Mill Race?

The structure is 47 ft (14.3 m) long with a longest span of 46 ft (13.9 m) and a deck 40 ft wide.

Who owns Hall ST over Mill Race?

It is owned by the City or Municipal Highway Agency.