US Bridges

Cth Hh over Dell Creek

Poor

Sauk County, Wisconsin · 1.8M N JCT Cth Wd · Structure no. P56007300000000

Built
1974
51 years old
Condition
Poor
inspected September 2024
Type
Slab
Wood or Timber
Length
40 ft
2 main spans
Daily traffic
1,100
2024 count
Owner
County
County Highway Agency

About this bridge

Cth Hh over Dell Creek is a wood or timber slab carrying Cth Hh over Dell Creek in Sauk County, Wisconsin. It was built in 1974, so it is 51 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,100 vehicles a day, projected to reach 1,320 by 2041. The structure is 40 ft (12.2 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCth Hh
CrossesDell Creek
Location1.8M N JCT Cth Wd
RouteCounty Highway 0HH
Coordinates43.6298, -89.94137
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 20
Structure length40 ft (12.2 m)
Longest span19 ft (5.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2024)
Projected traffic1,320 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$267,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Hh over Dell Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Cth Hh over Dell Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Cth Hh over Dell Creek carry?

About 1,100 vehicles per day (2024 count).

How long is Cth Hh over Dell Creek?

The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.9 m) and a deck 33 ft wide.

Who owns Cth Hh over Dell Creek?

It is owned by the County Highway Agency.