US Bridges

County Road Mm over Buffalo Creek

Fair

Prowers County, Colorado · .5 MI E of SH 385 · Structure no. PRMM-239-34-52A

Built
1980
45 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Aluminum, Wrought Iron, or Cast Iron
Length
27 ft
1 main span
Daily traffic
16
2022 count
Owner
County
County Highway Agency

About this bridge

County Road Mm over Buffalo Creek is a aluminum, wrought iron, or cast iron arch - deck carrying County Road Mm over Buffalo Creek in Prowers County, Colorado. It was built in 1980, so it is 45 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 16 vehicles a day, projected to reach 19 by 2042. The structure is 27 ft (8.3 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road Mm
CrossesBuffalo Creek
Location.5 MI E of SH 385
RouteCounty Highway 0
CountyProwers County
StateColorado
Coordinates38.14395, -102.30246
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating56.3 US tons

Structure

Structure typeArch - Deck
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length27 ft (8.3 m)
Longest span27 ft (8.3 m)
Deck width60 ft (18.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2022)
Projected traffic19 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road Mm over Buffalo Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is County Road Mm over Buffalo 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 Mm over Buffalo Creek carry?

About 16 vehicles per day (2022 count).

How long is County Road Mm over Buffalo Creek?

The structure is 27 ft (8.3 m) long with a longest span of 27 ft (8.3 m) and a deck 60 ft wide.

Who owns County Road Mm over Buffalo Creek?

It is owned by the County Highway Agency.