US Bridges

Arrowhead Drive over Cadwell Slough

FairPosted for load

Carbon County, Wyoming · Saratoga · Structure no. LDR

Built
2001
24 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
60
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Arrowhead Drive over Cadwell Slough is a prestressed concrete tee beam carrying Arrowhead Drive over Cadwell Slough in Carbon County, Wyoming. It was built in 2001, so it is 24 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, roughly 27% of them trucks, projected to reach 84 by 2043. The structure is 70 ft (21.3 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesArrowhead Drive
CrossesCadwell Slough
LocationSaratoga
RouteCity Street 395-2
CountyCarbon County
StateWyoming
Coordinates41.45186, -106.79998
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span68 ft (20.7 m)
Deck width20 ft (6.2 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2024)
Projected traffic84 by 2043
Trucks27%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$45,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Arrowhead Drive over Cadwell Slough built?

It was built in 2001, making it 24 years old in 2025.

What condition is Arrowhead Drive over Cadwell Slough 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 August 2023.

How much traffic does Arrowhead Drive over Cadwell Slough carry?

About 60 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is Arrowhead Drive over Cadwell Slough?

The structure is 70 ft (21.3 m) long with a longest span of 68 ft (20.7 m) and a deck 20 ft wide.

Who owns Arrowhead Drive over Cadwell Slough?

It is owned by the Town or Township Highway Agency.