US Bridges

County Road 28 over Two Buttes Creek

Fair

Prowers County, Colorado · 1.2 MI S of CR N · Structure no. PR28-27-10.4-88

Built
1936
89 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Masonry
Length
113 ft
6 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 28 over Two Buttes Creek is a masonry arch - deck carrying County Road 28 over Two Buttes Creek in Prowers County, Colorado. It was built in 1936, so it is 89 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 45 vehicles a day, projected to reach 53 by 2042. The structure is 113 ft (34.5 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCounty Road 28
CrossesTwo Buttes Creek
Location1.2 MI S of CR N
RouteCounty Highway 0
CountyProwers County
StateColorado
Coordinates37.79536, -102.25576
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans6
Design loadUnknown
Structure length113 ft (34.5 m)
Longest span15 ft (4.6 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic53 by 2042
Trucks0%
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 statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 28 over Two Buttes Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is County Road 28 over Two Buttes 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 April 2023.

How much traffic does County Road 28 over Two Buttes Creek carry?

About 45 vehicles per day (2022 count).

How long is County Road 28 over Two Buttes Creek?

The structure is 113 ft (34.5 m) long with a longest span of 15 ft (4.6 m) and a deck 30 ft wide.

Who owns County Road 28 over Two Buttes Creek?

It is owned by the County Highway Agency.