US Bridges

Lrd Mika Road over Marengo River

Fair

Ashland County, Wisconsin · 1.8M S JCT Sth 112 · Structure no. B02005300000000

Built
1998
27 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
110
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Mika Road over Marengo River is a prestressed concrete box beam or girders - multiple carrying Lrd Mika Road over Marengo River in Ashland County, Wisconsin. It was built in 1998, so it is 27 years old, younger than the Wisconsin average of 40.3 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 110 vehicles a day, projected to reach 118 by 2043. The structure is 73 ft (22.4 m) long and 25 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesLrd Mika Road
CrossesMarengo River
Location1.8M S JCT Sth 112
RouteCity Street 0
CountyAshland County
StateWisconsin
Coordinates46.42436, -90.86883
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length73 ft (22.4 m)
Longest span71 ft (21.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2024)
Projected traffic118 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Mika Road over Marengo River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Lrd Mika Road over Marengo River 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 Lrd Mika Road over Marengo River carry?

About 110 vehicles per day (2024 count).

How long is Lrd Mika Road over Marengo River?

The structure is 73 ft (22.4 m) long with a longest span of 71 ft (21.5 m) and a deck 25 ft wide.

Who owns Lrd Mika Road over Marengo River?

It is owned by the Town or Township Highway Agency.