US Bridges

Pa Cnty RD 4DT over Wood River

Fair

Park County, Wyoming · 12 Miles SW of Meteetse · Structure no. DDP

Built
1925
100 years old
Condition
Fair
inspected May 2023
Type
Truss - Thru
Steel
Length
83 ft
1 main span
Daily traffic
178
2024 count
Owner
County
County Highway Agency

About this bridge

Pa Cnty RD 4DT over Wood River is a steel truss - thru carrying Pa Cnty RD 4DT over Wood River in Park County, Wyoming. It was built in 1925, so it is 100 years old, older 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 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 178 vehicles a day, roughly 31% of them trucks, projected to reach 249 by 2043. The structure is 83 ft (25.3 m) long and 22 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesPa Cnty RD 4DT
CrossesWood River
Location12 Miles SW of Meteetse
RouteCounty Highway 4DT
CountyPark County
StateWyoming
Coordinates44.021, -109.00061
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.
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 protection8 Very GoodNo problems noted.
Last inspectionMay 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating68.5 US tons
Inventory rating61.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length83 ft (25.3 m)
Longest span80 ft (24.4 m)
Deck width22 ft (6.7 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic178 (2024)
Projected traffic249 by 2043
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$79,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Cnty RD 4DT over Wood River built?

It was built in 1925, making it 100 years old in 2025.

What condition is Pa Cnty RD 4DT over Wood River 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 May 2023.

How much traffic does Pa Cnty RD 4DT over Wood River carry?

About 178 vehicles per day (2024 count), of which roughly 31% are trucks.

How long is Pa Cnty RD 4DT over Wood River?

The structure is 83 ft (25.3 m) long with a longest span of 80 ft (24.4 m) and a deck 22 ft wide.

Who owns Pa Cnty RD 4DT over Wood River?

It is owned by the County Highway Agency.