US Bridges

Sth 100-N 108th ST over Wildcat Creek

Fair

Milwaukee County, Wisconsin · 0.8M N JCT Ush 45 to N · Structure no. B40032000000000

Built
1968
57 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
23,900
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 100-N 108th ST over Wildcat Creek is a concrete continuous culvert carrying Sth 100-N 108th ST over Wildcat Creek in Milwaukee County, Wisconsin. It was built in 1968, so it is 57 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 23,900 vehicles a day, roughly 3% of them trucks, projected to reach 46,550 by 2043. The structure is 31 ft (9.3 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSth 100-N 108th ST
CrossesWildcat Creek
Location0.8M N JCT Ush 45 to N
RouteState Highway 100
Coordinates42.96581, -88.04779
Functional classUrban Other Principal 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length31 ft (9.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,900 (2021)
Projected traffic46,550 by 2043
Trucks3%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 100-N 108th ST over Wildcat Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Sth 100-N 108th ST over Wildcat 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 Sth 100-N 108th ST over Wildcat Creek carry?

About 23,900 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Sth 100-N 108th ST over Wildcat Creek?

The structure is 31 ft (9.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Sth 100-N 108th ST over Wildcat Creek?

It is owned by the State Highway Agency.