US Bridges

Na Cnty RD 117 over Unnamed Draw

FairPosted for load

Natrona County, Wyoming · 1 Mile East of Edgerton · Structure no. DUL

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
101 ft
5 main spans
Daily traffic
6
2024 count
Owner
County
County Highway Agency

About this bridge

Na Cnty RD 117 over Unnamed Draw is a wood or timber stringer/multi-beam or girder carrying Na Cnty RD 117 over Unnamed Draw in Natrona County, Wyoming. It was built in 1967, so it is 58 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. Its operating status is: posted for load restriction.

It carries about 6 vehicles a day, projected to reach 8 by 2043. The structure is 101 ft (30.8 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNa Cnty RD 117
CrossesUnnamed Draw
Location1 Mile East of Edgerton
RouteCounty Highway 117
CountyNatrona County
StateWyoming
Coordinates43.40224, -106.22394
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
Deck7 GoodSome minor problems.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating39.6 US tons
Inventory rating28.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadUnknown
Structure length101 ft (30.8 m)
Longest span20 ft (6 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6 (2024)
Projected traffic8 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$59,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Na Cnty RD 117 over Unnamed Draw built?

It was built in 1967, making it 58 years old in 2025.

What condition is Na Cnty RD 117 over Unnamed Draw 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 2024.

How much traffic does Na Cnty RD 117 over Unnamed Draw carry?

About 6 vehicles per day (2024 count).

How long is Na Cnty RD 117 over Unnamed Draw?

The structure is 101 ft (30.8 m) long with a longest span of 20 ft (6 m) and a deck 18 ft wide.

Who owns Na Cnty RD 117 over Unnamed Draw?

It is owned by the County Highway Agency.