US Bridges

Sth 122 over Lawrence CR

Good

Iron County, Wisconsin · 7.8 M N JCT Cth E · Structure no. B26003700000000

Built
2011
14 years old
Condition
Good
inspected June 2022
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
280
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 122 over Lawrence CR is a concrete culvert carrying Sth 122 over Lawrence CR in Iron County, Wisconsin. It was built in 2011, so it is 14 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 280 vehicles a day, roughly 10% of them trucks, projected to reach 350 by 2039. The structure is 23 ft (7.1 m) long. If it were closed, the detour would be 32.9 mi (53 km).

CarriesSth 122
CrossesLawrence CR
Location7.8 M N JCT Cth E
RouteState Highway 122
Coordinates46.48514, -90.40369
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7.1 m)
Longest span10 ft (2.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2022)
Projected traffic350 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 122 over Lawrence CR built?

It was built in 2011, making it 14 years old in 2025.

What condition is Sth 122 over Lawrence CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2022.

How much traffic does Sth 122 over Lawrence CR carry?

About 280 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Sth 122 over Lawrence CR?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (2.9 m).

Who owns Sth 122 over Lawrence CR?

It is owned by the State Highway Agency.