US Bridges

Sth 49 over S Br Rock River

Good

Fond du Lac County, Wisconsin · 1.4M N JCT Cth Aw · Structure no. B20009700000000

Built
1993
32 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete
Length
48 ft
1 main span
Daily traffic
2,700
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 49 over S Br Rock River is a concrete slab carrying Sth 49 over S Br Rock River in Fond du Lac County, Wisconsin. It was built in 1993, so it is 32 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 2,700 vehicles a day, roughly 6% of them trucks, projected to reach 5,620 by 2042. The structure is 48 ft (14.5 m) long and 46 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesSth 49
CrossesS Br Rock River
Location1.4M N JCT Cth Aw
RouteState Highway 49
Coordinates43.65167, -88.775
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
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 length48 ft (14.5 m)
Longest span47 ft (14.3 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2023)
Projected traffic5,620 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 49 over S Br Rock River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Sth 49 over S Br Rock River 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 May 2023.

How much traffic does Sth 49 over S Br Rock River carry?

About 2,700 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Sth 49 over S Br Rock River?

The structure is 48 ft (14.5 m) long with a longest span of 47 ft (14.3 m) and a deck 46 ft wide.

Who owns Sth 49 over S Br Rock River?

It is owned by the State Highway Agency.