US Bridges

LN Cnty RD 128 over Willow Creek

Good

Lincoln County, Wyoming · 4.5 MI North of Auburn · Structure no. KUX

Built
1998
27 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
257
2024 count
Owner
County
County Highway Agency

About this bridge

LN Cnty RD 128 over Willow Creek is a steel stringer/multi-beam or girder carrying LN Cnty RD 128 over Willow Creek in Lincoln County, Wyoming. It was built in 1998, so it is 27 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 257 vehicles a day, roughly 22% of them trucks, projected to reach 360 by 2043. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLN Cnty RD 128
CrossesWillow Creek
Location4.5 MI North of Auburn
RouteCounty Highway 128
StateWyoming
Coordinates42.85542, -110.98759
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.1 US tons
Inventory rating55 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic257 (2024)
Projected traffic360 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$38,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LN Cnty RD 128 over Willow Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is LN Cnty RD 128 over Willow 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 July 2023.

How much traffic does LN Cnty RD 128 over Willow Creek carry?

About 257 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is LN Cnty RD 128 over Willow Creek?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 26 ft wide.

Who owns LN Cnty RD 128 over Willow Creek?

It is owned by the County Highway Agency.