US Bridges

Sth 133 over Blakes Creek

Fair

Grant County, Wisconsin · 1.6M N JCT Cth a · Structure no. B22003400000000

Built
1952
73 years old, rebuilt 1990
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
109 ft
3 main spans
Daily traffic
1,000
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 133 over Blakes Creek is a steel continuous stringer/multi-beam or girder carrying Sth 133 over Blakes Creek in Grant County, Wisconsin. It was built in 1952 and reconstructed in 1990, so it is 73 years old, older 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 5 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 1,000 vehicles a day, roughly 10% of them trucks, projected to reach 1,760 by 2042. The structure is 109 ft (33.2 m) long and 28 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesSth 133
CrossesBlakes Creek
Location1.6M N JCT Cth a
RouteState Highway 133
CountyGrant County
StateWisconsin
Coordinates42.88702, -90.93079
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating61.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length109 ft (33.2 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic1,760 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 133 over Blakes Creek built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1990.

What condition is Sth 133 over Blakes 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 September 2023.

How much traffic does Sth 133 over Blakes Creek carry?

About 1,000 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Sth 133 over Blakes Creek?

The structure is 109 ft (33.2 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Sth 133 over Blakes Creek?

It is owned by the State Highway Agency.