US Bridges

County Road 26 over South Plum Creek

PoorPosted for load

Prowers County, Colorado · 1 MI S of CR R · Structure no. PR26-25-13.5-87

Built
1950
75 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
161 ft
7 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 26 over South Plum Creek is a wood or timber stringer/multi-beam or girder carrying County Road 26 over South Plum Creek in Prowers County, Colorado. It was built in 1950, so it is 75 years old, older than the Colorado average of 42.2 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 15 vehicles a day, projected to reach 18 by 2042. The structure is 161 ft (49.1 m) long and 30 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesCounty Road 26
CrossesSouth Plum Creek
Location1 MI S of CR R
RouteCounty Highway 0
Coordinates37.84444, -102.2906
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.3 US tons
Inventory rating23.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans7
Design loadUnknown
Structure length161 ft (49.1 m)
Longest span23 ft (6.9 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic18 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$257,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 26 over South Plum Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is County Road 26 over South Plum 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 April 2023.

How much traffic does County Road 26 over South Plum Creek carry?

About 15 vehicles per day (2022 count).

How long is County Road 26 over South Plum Creek?

The structure is 161 ft (49.1 m) long with a longest span of 23 ft (6.9 m) and a deck 30 ft wide.

Who owns County Road 26 over South Plum Creek?

It is owned by the County Highway Agency.