US Bridges

Lrd Whitnall Park over Root River

Fair

Milwaukee County, Wisconsin · 0.9M W JCT Cth U · Structure no. P40056600000000

Built
1935
90 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
47
2022 count
Owner
County
County Highway Agency

About this bridge

Lrd Whitnall Park over Root River is a steel stringer/multi-beam or girder carrying Lrd Whitnall Park over Root River in Milwaukee County, Wisconsin. It was built in 1935, so it is 90 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 47 vehicles a day, projected to reach 51 by 2043. The structure is 43 ft (13 m) long and 16 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesLrd Whitnall Park
CrossesRoot River
Location0.9M W JCT Cth U
RouteCity Street 0
CountyMilwaukee County
StateWisconsin
Coordinates42.94953, -88.02321
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13 m)
Longest span41 ft (12.6 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47 (2022)
Projected traffic51 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Lrd Whitnall Park over Root River built?

It was built in 1935, making it 90 years old in 2025.

What condition is Lrd Whitnall Park over Root River 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 2024.

How much traffic does Lrd Whitnall Park over Root River carry?

About 47 vehicles per day (2022 count).

How long is Lrd Whitnall Park over Root River?

The structure is 43 ft (13 m) long with a longest span of 41 ft (12.6 m) and a deck 16 ft wide.

Who owns Lrd Whitnall Park over Root River?

It is owned by the County Highway Agency.