US Bridges

Sth 23 over Br Lowery Creek

Good

Iowa County, Wisconsin · 8.2M E JCT Sth 130 · Structure no. B25006000000000

Built
1988
37 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
36 ft
1 main span
Daily traffic
3,600
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 23 over Br Lowery Creek is a concrete slab carrying Sth 23 over Br Lowery Creek in Iowa County, Wisconsin. It was built in 1988, so it is 37 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,600 vehicles a day, roughly 8% of them trucks, projected to reach 2,900 by 2043. The structure is 36 ft (10.9 m) long and 38 ft wide. If it were closed, the detour would be 41.6 mi (67 km).

CarriesSth 23
CrossesBr Lowery Creek
Location8.2M E JCT Sth 130
RouteState Highway 23
Coordinates43.13277, -90.06861
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (10.9 m)
Longest span34 ft (10.4 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2022)
Projected traffic2,900 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41.6 mi (67 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 23 over Br Lowery Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Sth 23 over Br Lowery Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Sth 23 over Br Lowery Creek carry?

About 3,600 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Sth 23 over Br Lowery Creek?

The structure is 36 ft (10.9 m) long with a longest span of 34 ft (10.4 m) and a deck 38 ft wide.

Who owns Sth 23 over Br Lowery Creek?

It is owned by the State Highway Agency.