US Bridges

Lrd Lannon Road SB over IH 41-USH 45

Fair

Washington County, Wisconsin · 2.5M W JCT Sth 145 · Structure no. B66003300000000

Built
1969
56 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
207 ft
2 main spans
Daily traffic
9,700
2022 count
Owner
State
State Highway Agency

About this bridge

Lrd Lannon Road SB over IH 41-USH 45 is a steel continuous stringer/multi-beam or girder carrying Lrd Lannon Road SB over IH 41-USH 45 in Washington County, Wisconsin. It was built in 1969, so it is 56 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 9,700 vehicles a day, roughly 4% of them trucks, projected to reach 6,145 by 2042. The structure is 207 ft (63.1 m) long and 77 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLrd Lannon Road SB
CrossesIH 41-USH 45
Location2.5M W JCT Sth 145
RouteCity Street 0
CountyWashington County
StateWisconsin
Coordinates43.21417, -88.14786
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length207 ft (63.1 m)
Longest span101 ft (30.9 m)
Deck width77 ft (23.6 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,700 (2022)
Projected traffic6,145 by 2042
Trucks4%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lrd Lannon Road SB over IH 41-USH 45 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Lrd Lannon Road SB over IH 41-USH 45 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 2023.

How much traffic does Lrd Lannon Road SB over IH 41-USH 45 carry?

About 9,700 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Lrd Lannon Road SB over IH 41-USH 45?

The structure is 207 ft (63.1 m) long with a longest span of 101 ft (30.9 m) and a deck 77 ft wide.

Who owns Lrd Lannon Road SB over IH 41-USH 45?

It is owned by the State Highway Agency.