US Bridges

Na Cnty RD 102 over Badwater Creek

PoorPosted for load

Natrona County, Wyoming · 20 Miles N.W. of Arminto · Structure no. DRF

Built
1940
85 years old
Condition
Poor
inspected August 2024
Type
Girder and Floorbeam System
Steel
Length
31 ft
1 main span
Daily traffic
22
2024 count
Owner
County
County Highway Agency

About this bridge

Na Cnty RD 102 over Badwater Creek is a steel girder and floorbeam system carrying Na Cnty RD 102 over Badwater Creek in Natrona County, Wyoming. It was built in 1940, so it is 85 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 22 vehicles a day, roughly 9% of them trucks, projected to reach 31 by 2043. The structure is 31 ft (9.4 m) long and 22 ft wide. If it were closed, the detour would be 80.2 mi (129 km).

CarriesNa Cnty RD 102
CrossesBadwater Creek
Location20 Miles N.W. of Arminto
RouteCounty Highway 102
StateWyoming
Coordinates43.34183, -107.45956
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.2 US tons
Inventory rating13 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22 (2024)
Projected traffic31 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed80.2 mi (129 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$224,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Na Cnty RD 102 over Badwater Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Na Cnty RD 102 over Badwater Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Na Cnty RD 102 over Badwater Creek carry?

About 22 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Na Cnty RD 102 over Badwater Creek?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 22 ft wide.

Who owns Na Cnty RD 102 over Badwater Creek?

It is owned by the County Highway Agency.