US Bridges

Lrd Ishnala RD over Dell Creek

Fair

Sauk County, Wisconsin · 0.3M S JCT Sth 23 · Structure no. B56007400000000

Built
1986
39 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
223 ft
2 main spans
Daily traffic
531
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Ishnala RD over Dell Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Lrd Ishnala RD over Dell Creek in Sauk County, Wisconsin. It was built in 1986, so it is 39 years old, younger 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 531 vehicles a day, projected to reach 584 by 2043. The structure is 223 ft (68.1 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLrd Ishnala RD
CrossesDell Creek
Location0.3M S JCT Sth 23
RouteCity Street 0
Coordinates43.58435, -89.7969
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.5 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length223 ft (68.1 m)
Longest span110 ft (33.5 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic531 (2024)
Projected traffic584 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Ishnala RD over Dell Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Lrd Ishnala RD over Dell 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 Lrd Ishnala RD over Dell Creek carry?

About 531 vehicles per day (2024 count).

How long is Lrd Ishnala RD over Dell Creek?

The structure is 223 ft (68.1 m) long with a longest span of 110 ft (33.5 m) and a deck 35 ft wide.

Who owns Lrd Ishnala RD over Dell Creek?

It is owned by the City or Municipal Highway Agency.