US Bridges

County HWY 581 over E Br Sturgeon River

Poor

Dickinson County, Michigan · 2 MI N of Felch · Structure no. 000000000002198

Built
1927
98 years old
Condition
Poor
inspected September 2024
Type
Girder and Floorbeam System
Concrete
Length
34 ft
1 main span
Daily traffic
406
2020 count
Owner
County
County Highway Agency

About this bridge

County HWY 581 over E Br Sturgeon River is a concrete girder and floorbeam system carrying County HWY 581 over E Br Sturgeon River in Dickinson County, Michigan. It was built in 1927, so it is 98 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 3 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 406 vehicles a day, roughly 44% of them trucks, projected to reach 447 by 2020. The structure is 34 ft (10.5 m) long and 27 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

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CarriesCounty HWY 581
CrossesE Br Sturgeon River
Location2 MI N of Felch
RouteCounty Highway 2245
CountyDickinson County
StateMichigan
Coordinates46.02761, -87.8345
Functional classRural Major Collector

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length34 ft (10.5 m)
Longest span32 ft (9.7 m)
Deck width27 ft (8.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic406 (2020)
Projected traffic447 by 2020
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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$253,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County HWY 581 over E Br Sturgeon River built?

It was built in 1927, making it 98 years old in 2025.

What condition is County HWY 581 over E Br Sturgeon 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 September 2024.

How much traffic does County HWY 581 over E Br Sturgeon River carry?

About 406 vehicles per day (2020 count), of which roughly 44% are trucks.

How long is County HWY 581 over E Br Sturgeon River?

The structure is 34 ft (10.5 m) long with a longest span of 32 ft (9.7 m) and a deck 27 ft wide.

Who owns County HWY 581 over E Br Sturgeon River?

It is owned by the County Highway Agency.