US Bridges

Li Road over Michigamme River

Poor

Marquette County, Michigan · 0.5 MI SE of So Republic · Structure no. 000000000006604

Built
1930
95 years old, rebuilt 2005
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
100 ft
2 main spans
Daily traffic
126
2000 count
Owner
County
County Highway Agency

About this bridge

Li Road over Michigamme River is a steel stringer/multi-beam or girder carrying Li Road over Michigamme River in Marquette County, Michigan. It was built in 1930 and reconstructed in 2005, so it is 95 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 126 vehicles a day, projected to reach 150 by 2020. The structure is 100 ft (30.4 m) long and 16 ft wide. If it were closed, the detour would be 124.9 mi (201 km).

Location

Open in Google Maps
CarriesLi Road
CrossesMichigamme River
Location0.5 MI SE of So Republic
RouteCounty Highway 0
CountyMarquette County
StateMichigan
Coordinates46.35871, -87.97578
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating27.4 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadHS 20 + Mod
Structure length100 ft (30.4 m)
Longest span48 ft (14.6 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic126 (2000)
Projected traffic150 by 2020
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.9 mi (201 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$526,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Li Road over Michigamme River built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2005.

What condition is Li Road over Michigamme River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Li Road over Michigamme River carry?

About 126 vehicles per day (2000 count).

How long is Li Road over Michigamme River?

The structure is 100 ft (30.4 m) long with a longest span of 48 ft (14.6 m) and a deck 16 ft wide.

Who owns Li Road over Michigamme River?

It is owned by the County Highway Agency.