US Bridges

Ni Cnty RD 14 over Lightning Creek

Fair

Niobrara County, Wyoming · N. Lance Creek Road · Structure no. KBG

Built
1994
31 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
110 ft
2 main spans
Daily traffic
29
2024 count
Owner
County
County Highway Agency

About this bridge

Ni Cnty RD 14 over Lightning Creek is a prestressed concrete tee beam carrying Ni Cnty RD 14 over Lightning Creek in Niobrara County, Wyoming. It was built in 1994, so it is 31 years old, younger 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 6 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 29 vehicles a day, roughly 21% of them trucks, projected to reach 41 by 2043. The structure is 110 ft (33.5 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNi Cnty RD 14
CrossesLightning Creek
LocationN. Lance Creek Road
RouteCounty Highway 14
CountyNiobrara County
StateWyoming
Coordinates43.22955, -104.62387
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span54 ft (16.5 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2024)
Projected traffic41 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ni Cnty RD 14 over Lightning Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Ni Cnty RD 14 over Lightning Creek 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 October 2023.

How much traffic does Ni Cnty RD 14 over Lightning Creek carry?

About 29 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is Ni Cnty RD 14 over Lightning Creek?

The structure is 110 ft (33.5 m) long with a longest span of 54 ft (16.5 m) and a deck 28 ft wide.

Who owns Ni Cnty RD 14 over Lightning Creek?

It is owned by the County Highway Agency.