US Bridges

Cth O Seymour RD over Shullsburg Branch

Good

Lafayette County, Wisconsin · 0.4M N JCT Sth 11 · Structure no. B33012900000000

Built
2017
8 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
900
2022 count
Owner
County
County Highway Agency

About this bridge

Cth O Seymour RD over Shullsburg Branch is a prestressed concrete stringer/multi-beam or girder carrying Cth O Seymour RD over Shullsburg Branch in Lafayette County, Wisconsin. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 900 vehicles a day, roughly 7% of them trucks, projected to reach 1,000 by 2043. The structure is 62 ft (18.8 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth O Seymour RD
CrossesShullsburg Branch
Location0.4M N JCT Sth 11
RouteCounty Highway 0O
Coordinates42.57908, -90.24068
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length62 ft (18.8 m)
Longest span58 ft (17.7 m)
Deck width43 ft (13 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2022)
Projected traffic1,000 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth O Seymour RD over Shullsburg Branch built?

It was built in 2017, making it 8 years old in 2025.

What condition is Cth O Seymour RD over Shullsburg Branch 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 September 2024.

How much traffic does Cth O Seymour RD over Shullsburg Branch carry?

About 900 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Cth O Seymour RD over Shullsburg Branch?

The structure is 62 ft (18.8 m) long with a longest span of 58 ft (17.7 m) and a deck 43 ft wide.

Who owns Cth O Seymour RD over Shullsburg Branch?

It is owned by the County Highway Agency.