US Bridges

Freeway Trail over Sturgeon River

PoorPosted for load

Cheboygan County, Michigan · Sec 20 T33N R2W · Structure no. 000000000001549

Built
1978
47 years old, rebuilt 2010
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
30
2005 count
Owner
County
County Highway Agency

About this bridge

Freeway Trail over Sturgeon River is a steel stringer/multi-beam or girder carrying Freeway Trail over Sturgeon River in Cheboygan County, Michigan. It was built in 1978 and reconstructed in 2010, so it is 47 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, projected to reach 50 by 2025. The structure is 35 ft (10.7 m) long and 12 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

CarriesFreeway Trail
CrossesSturgeon River
LocationSec 20 T33N R2W
RouteCounty Highway 0
Coordinates45.23663, -84.58608
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.
Superstructure8 Very GoodNo problems noted.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating43.5 US tons
Inventory rating26.1 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2005)
Projected traffic50 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed198.8 mi (320 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$75,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Freeway Trail over Sturgeon River built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2010.

What condition is Freeway Trail over 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 July 2024.

How much traffic does Freeway Trail over Sturgeon River carry?

About 30 vehicles per day (2005 count).

How long is Freeway Trail over Sturgeon River?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 12 ft wide.

Who owns Freeway Trail over Sturgeon River?

It is owned by the County Highway Agency.