US Bridges

Korpela Road over Jackson Creek

Fair

Gogebic County, Michigan · Sec 30 Wakefield Twp · Structure no. 000000000003026

Built
2007
18 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
12
2006 count
Owner
County
County Highway Agency

About this bridge

Korpela Road over Jackson Creek is a prestressed concrete box beam or girders - multiple carrying Korpela Road over Jackson Creek in Gogebic County, Michigan. It was built in 2007, so it is 18 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 12 vehicles a day, projected to reach 20 by 2026. The structure is 50 ft (15.2 m) long and 25 ft wide. If it were closed, the detour would be 124.3 mi (200 km).

Location

Open in Google Maps
CarriesKorpela Road
CrossesJackson Creek
LocationSec 30 Wakefield Twp
RouteCounty Highway 0
CountyGogebic County
StateMichigan
Coordinates46.44703, -89.86488
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating46.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (2006)
Projected traffic20 by 2026
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.3 mi (200 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Korpela Road over Jackson Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Korpela Road over Jackson Creek 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 Korpela Road over Jackson Creek carry?

About 12 vehicles per day (2006 count).

How long is Korpela Road over Jackson Creek?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 25 ft wide.

Who owns Korpela Road over Jackson Creek?

It is owned by the County Highway Agency.