US Bridges

Jo Cnty RD 1 over Rock Creek

Poor

Johnson County, Wyoming · 4 MI N.E. of Buffalo · Structure no. KIC

Built
1994
31 years old
Condition
Poor
inspected March 2024
Type
Culvert
Steel
Length
38 ft
3 main spans
Daily traffic
168
2024 count
Owner
County
County Highway Agency

About this bridge

Jo Cnty RD 1 over Rock Creek is a steel culvert carrying Jo Cnty RD 1 over Rock Creek in Johnson 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 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.

It carries about 168 vehicles a day, roughly 10% of them trucks, projected to reach 235 by 2043. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesJo Cnty RD 1
CrossesRock Creek
Location4 MI N.E. of Buffalo
RouteCounty Highway 1
CountyJohnson County
StateWyoming
Coordinates44.40627, -106.74401
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic168 (2024)
Projected traffic235 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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$40,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Jo Cnty RD 1 over Rock Creek built?

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

What condition is Jo Cnty RD 1 over Rock 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 March 2024.

How much traffic does Jo Cnty RD 1 over Rock Creek carry?

About 168 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Jo Cnty RD 1 over Rock Creek?

The structure is 38 ft (11.5 m) long with a longest span of 9 ft (2.7 m).

Who owns Jo Cnty RD 1 over Rock Creek?

It is owned by the County Highway Agency.