US Bridges

Sth 13 over Porky Creek

Poor

Clark County, Wisconsin · 3.1 Miles N. of Sth 29 · Structure no. B10024000000000

Built
1981
44 years old
Condition
Poor
inspected June 2024
Type
Culvert
Steel
Length
27 ft
3 main spans
Daily traffic
6,800
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 13 over Porky Creek is a steel culvert carrying Sth 13 over Porky Creek in Clark County, Wisconsin. It was built in 1981, so it is 44 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 6,800 vehicles a day, projected to reach 8,160 by 2043. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 52.8 mi (85 km).

Location

Open in Google Maps
CarriesSth 13
CrossesPorky Creek
Location3.1 Miles N. of Sth 29
RouteState Highway 13
CountyClark County
StateWisconsin
Coordinates44.97831, -90.31608
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,800 (2022)
Projected traffic8,160 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.8 mi (85 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$238,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 13 over Porky Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Sth 13 over Porky Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Sth 13 over Porky Creek carry?

About 6,800 vehicles per day (2022 count).

How long is Sth 13 over Porky Creek?

The structure is 27 ft (8.2 m) long with a longest span of 5 ft (1.5 m).

Who owns Sth 13 over Porky Creek?

It is owned by the State Highway Agency.