US Bridges

US-41&M-26 Rr(abn) over Portage Lake & EB M-26

Fair

Houghton County, Michigan · Houghton Hancock · Structure no. 000000000003380

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Movable - Lift
Steel
Length
1,310 ft
1 main span
Daily traffic
24,754
2021 count
Owner
State
State Highway Agency

About this bridge

US-41&M-26 Rr(abn) over Portage Lake & EB M-26 is a steel movable - lift carrying US-41&M-26 Rr(abn) over Portage Lake & EB M-26 in Houghton County, Michigan. It was built in 1960, so it is 65 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 24,754 vehicles a day, roughly 3% of them trucks, projected to reach 28,467 by 2041. The structure is 1,310 ft (399.3 m) long and 69 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

Location

Open in Google Maps
CarriesUS-41&M-26 Rr(abn)
CrossesPortage Lake & EB M-26
LocationHoughton Hancock
RouteU.S. Route 41
CountyHoughton County
StateMichigan
Coordinates47.12259, -88.57374
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating29.3 US tons

Structure

Structure typeMovable - Lift
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+10 approach)
Design loadHS 20
Structure length1,310 ft (399.3 m)
Longest span269 ft (82 m)
Deck width69 ft (21 m)
Roadway width54 ft (16.4 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic24,754 (2021)
Projected traffic28,467 by 2041
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed198.8 mi (320 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US-41&M-26 Rr(abn) over Portage Lake & EB M-26 built?

It was built in 1960, making it 65 years old in 2025.

What condition is US-41&M-26 Rr(abn) over Portage Lake & EB M-26 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 June 2024.

How much traffic does US-41&M-26 Rr(abn) over Portage Lake & EB M-26 carry?

About 24,754 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is US-41&M-26 Rr(abn) over Portage Lake & EB M-26?

The structure is 1,310 ft (399.3 m) long with a longest span of 269 ft (82 m) and a deck 69 ft wide.

Who owns US-41&M-26 Rr(abn) over Portage Lake & EB M-26?

It is owned by the State Highway Agency.