US Bridges

Sth 73-MAIN ST over Rock Creek

Fair

Clark County, Wisconsin · 1.6M N JCT Sth 98 · Structure no. B10001300000000

Built
1957
68 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
3,800
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 73-MAIN ST over Rock Creek is a concrete continuous slab carrying Sth 73-MAIN ST over Rock Creek in Clark County, Wisconsin. It was built in 1957, so it is 68 years old, older 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 3,800 vehicles a day, roughly 6% of them trucks, projected to reach 4,560 by 2042. The structure is 143 ft (43.6 m) long and 37 ft wide. If it were closed, the detour would be 56.5 mi (91 km).

Location

Open in Google Maps
CarriesSth 73-MAIN ST
CrossesRock Creek
Location1.6M N JCT Sth 98
RouteState Highway 73
CountyClark County
StateWisconsin
Coordinates44.75827, -90.59795
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length143 ft (43.6 m)
Longest span55 ft (16.8 m)
Deck width37 ft (11.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2022)
Projected traffic4,560 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed56.5 mi (91 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 73-MAIN ST over Rock Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Sth 73-MAIN ST over Rock 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 June 2023.

How much traffic does Sth 73-MAIN ST over Rock Creek carry?

About 3,800 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Sth 73-MAIN ST over Rock Creek?

The structure is 143 ft (43.6 m) long with a longest span of 55 ft (16.8 m) and a deck 37 ft wide.

Who owns Sth 73-MAIN ST over Rock Creek?

It is owned by the State Highway Agency.