US Bridges

Forest Road 9300 over Little Presque Isle Riv

Fair

Gogebic County, Michigan · 3 MI N 4 MI W Marenisco · Structure no. 090702000001020

Built
1966
59 years old, rebuilt 1995
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
43 ft
2 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Forest Road 9300 over Little Presque Isle Riv is a wood or timber stringer/multi-beam or girder carrying Forest Road 9300 over Little Presque Isle Riv in Gogebic County, Michigan. It was built in 1966 and reconstructed in 1995, so it is 59 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 43 ft (13.1 m) long and 26 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

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CarriesForest Road 9300
CrossesLittle Presque Isle Riv
Location3 MI N 4 MI W Marenisco
RouteFederal Lands Road 9300
CountyGogebic County
StateMichigan
Coordinates46.41901, -89.78401
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span22 ft (6.7 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Forest Road 9300 over Little Presque Isle Riv built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1995.

What condition is Forest Road 9300 over Little Presque Isle Riv 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 August 2024.

How much traffic does Forest Road 9300 over Little Presque Isle Riv carry?

About 50 vehicles per day (latest count).

How long is Forest Road 9300 over Little Presque Isle Riv?

The structure is 43 ft (13.1 m) long with a longest span of 22 ft (6.7 m) and a deck 26 ft wide.

Who owns Forest Road 9300 over Little Presque Isle Riv?

It is owned by the U.S. Forest Service.