US Bridges

Sth 38-HOWELL Ave over Airport Creek

Fair

Milwaukee County, Wisconsin · 0.5M N JCT Cth Zz · Structure no. B40029600000000

Built
1964
61 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
23,600
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 38-HOWELL Ave over Airport Creek is a concrete continuous culvert carrying Sth 38-HOWELL Ave over Airport Creek in Milwaukee County, Wisconsin. It was built in 1964, so it is 61 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 5 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 23,600 vehicles a day, roughly 3% of them trucks, projected to reach 51,700 by 2043. The structure is 22 ft (6.8 m) long and 110 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

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CarriesSth 38-HOWELL Ave
CrossesAirport Creek
Location0.5M N JCT Cth Zz
RouteState Highway 38
CountyMilwaukee County
StateWisconsin
Coordinates42.93822, -87.90954
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 protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.8 m)
Longest span10 ft (3 m)
Deck width110 ft (33.5 m)
Roadway width107 ft (32.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,600 (2022)
Projected traffic51,700 by 2043
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed21.7 mi (35 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 38-HOWELL Ave over Airport Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Sth 38-HOWELL Ave over Airport 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 October 2024.

How much traffic does Sth 38-HOWELL Ave over Airport Creek carry?

About 23,600 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Sth 38-HOWELL Ave over Airport Creek?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3 m) and a deck 110 ft wide.

Who owns Sth 38-HOWELL Ave over Airport Creek?

It is owned by the State Highway Agency.