US Bridges

Lrd Knutson DR over Cnw RR

Fair

Dane County, Wisconsin · 0.1M W JCT Sth 113 · Structure no. P13074800000000

Built
1964
61 years old, rebuilt 1992
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
93 ft
1 main span
Daily traffic
3,800
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Knutson DR over Cnw RR is a steel stringer/multi-beam or girder carrying Lrd Knutson DR over Cnw RR in Dane County, Wisconsin. It was built in 1964 and reconstructed in 1992, 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 3,800 vehicles a day, projected to reach 4,074 by 2043. The structure is 93 ft (28.3 m) long and 50 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLrd Knutson DR
CrossesCnw RR
Location0.1M W JCT Sth 113
RouteCity Street 0
CountyDane County
StateWisconsin
Coordinates43.14175, -89.39319
Functional classUrban Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length93 ft (28.3 m)
Longest span90 ft (27.4 m)
Deck width50 ft (15.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2022)
Projected traffic4,074 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Knutson DR over Cnw RR built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1992.

What condition is Lrd Knutson DR over Cnw RR 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 Lrd Knutson DR over Cnw RR carry?

About 3,800 vehicles per day (2022 count).

How long is Lrd Knutson DR over Cnw RR?

The structure is 93 ft (28.3 m) long with a longest span of 90 ft (27.4 m) and a deck 50 ft wide.

Who owns Lrd Knutson DR over Cnw RR?

It is owned by the City or Municipal Highway Agency.