US Bridges

Pa Cnty RD R16 over Alkali Creek

Good

Park County, Wyoming · 1.5 MI N of Ralston · Structure no. MMY

Built
2011
14 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
130
2024 count
Owner
County
County Highway Agency

About this bridge

Pa Cnty RD R16 over Alkali Creek is a prestressed concrete tee beam carrying Pa Cnty RD R16 over Alkali Creek in Park County, Wyoming. It was built in 2011, so it is 14 years old, younger than the Wyoming average of 48.4 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 130 vehicles a day, roughly 12% of them trucks, projected to reach 182 by 2043. The structure is 69 ft (21 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesPa Cnty RD R16
CrossesAlkali Creek
Location1.5 MI N of Ralston
RouteCounty Highway 0R16
StateWyoming
Coordinates44.73036, -108.89168
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 alignment7: Better than present minimum criteria
Operating rating67 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length69 ft (21 m)
Longest span65 ft (19.8 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2024)
Projected traffic182 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Pa Cnty RD R16 over Alkali Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Pa Cnty RD R16 over Alkali 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 February 2024.

How much traffic does Pa Cnty RD R16 over Alkali Creek carry?

About 130 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Pa Cnty RD R16 over Alkali Creek?

The structure is 69 ft (21 m) long with a longest span of 65 ft (19.8 m) and a deck 30 ft wide.

Who owns Pa Cnty RD R16 over Alkali Creek?

It is owned by the County Highway Agency.