US Bridges

Dunham Road over Little Presque Isle Riv

Fair

Gogebic County, Michigan · Sec 14 Marenisco Twp · Structure no. 000000000003016

Built
1990
35 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
120
1998 count
Owner
County
County Highway Agency

About this bridge

Dunham Road over Little Presque Isle Riv is a concrete culvert carrying Dunham Road over Little Presque Isle Riv in Gogebic County, Michigan. It was built in 1990, so it is 35 years old, younger 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 6 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 120 vehicles a day, projected to reach 130 by 2018. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesDunham Road
CrossesLittle Presque Isle Riv
LocationSec 14 Marenisco Twp
RouteCounty Highway 0
CountyGogebic County
StateMichigan
Coordinates46.38082, -89.77472
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40.1 US tons
Inventory rating38.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (1998)
Projected traffic130 by 2018
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$154,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dunham Road over Little Presque Isle Riv built?

It was built in 1990, making it 35 years old in 2025.

What condition is Dunham Road 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 September 2024.

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

About 120 vehicles per day (1998 count).

How long is Dunham Road over Little Presque Isle Riv?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Dunham Road over Little Presque Isle Riv?

It is owned by the County Highway Agency.