US Bridges

8th ST over Baldwin River

Good

Lake County, Michigan · 0.5 MI E of M-37 · Structure no. 000000000005299

Built
2023
2 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
694
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

8th ST over Baldwin River is a prestressed concrete box beam or girders - multiple carrying 8th ST over Baldwin River in Lake County, Michigan. It was built in 2023, so it is 2 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 694 vehicles a day, roughly 5% of them trucks, projected to reach 2,000 by 2042. The structure is 50 ft (15.2 m) long and 34 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
Carries8th ST
CrossesBaldwin River
Location0.5 MI E of M-37
RouteCity Street 4322
CountyLake County
StateMichigan
Coordinates43.8966, -85.84262
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating65 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length50 ft (15.2 m)
Longest span49 ft (14.8 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic694 (2022)
Projected traffic2,000 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was 8th ST over Baldwin River built?

It was built in 2023, making it 2 years old in 2025.

What condition is 8th ST over Baldwin River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does 8th ST over Baldwin River carry?

About 694 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is 8th ST over Baldwin River?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.8 m) and a deck 34 ft wide.

Who owns 8th ST over Baldwin River?

It is owned by the City or Municipal Highway Agency.