US Bridges

County Road Mm over N. Fork Republican River

Good

Yuma County, Colorado · 0.10 MI N of US HWY 34 · Structure no. YUMMM-35.80-A

Built
1992
33 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
26
2023 count
Owner
County
County Highway Agency

About this bridge

County Road Mm over N. Fork Republican River is a steel stringer/multi-beam or girder carrying County Road Mm over N. Fork Republican River in Yuma County, Colorado. It was built in 1992, so it is 33 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 26 vehicles a day, roughly 35% of them trucks, projected to reach 31 by 2043. The structure is 52 ft (15.7 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCounty Road Mm
CrossesN. Fork Republican River
Location0.10 MI N of US HWY 34
RouteCounty Highway 0
CountyYuma County
StateColorado
Coordinates40.08589, -102.15172
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating26.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span46 ft (14 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2023)
Projected traffic31 by 2043
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 N. Fork Republican River built?

It was built in 1992, making it 33 years old in 2025.

What condition is County Road Mm over N. Fork Republican River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does County Road Mm over N. Fork Republican River carry?

About 26 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is County Road Mm over N. Fork Republican River?

The structure is 52 ft (15.7 m) long with a longest span of 46 ft (14 m) and a deck 31 ft wide.

Who owns County Road Mm over N. Fork Republican River?

It is owned by the County Highway Agency.