US Bridges

County Road 1200 over Buttermilk Creek

Good

Delta County, Colorado · 1.3 MI SW of CR 1300 · Structure no. DEL1200D-1-37A

Built
2019
6 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
121
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 1200 over Buttermilk Creek is a prestressed concrete box beam or girders - single or spread carrying County Road 1200 over Buttermilk Creek in Delta County, Colorado. It was built in 2019, so it is 6 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 121 vehicles a day, roughly 2% of them trucks, projected to reach 136 by 2042. The structure is 60 ft (18.3 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 1200
CrossesButtermilk Creek
Location1.3 MI SW of CR 1300
RouteCounty Highway 0
CountyDelta County
StateColorado
Coordinates38.68144, -108.12628
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length60 ft (18.3 m)
Longest span55 ft (16.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic121 (2022)
Projected traffic136 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 1200 over Buttermilk Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is County Road 1200 over Buttermilk Creek 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 September 2023.

How much traffic does County Road 1200 over Buttermilk Creek carry?

About 121 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 1200 over Buttermilk Creek?

The structure is 60 ft (18.3 m) long with a longest span of 55 ft (16.8 m) and a deck 33 ft wide.

Who owns County Road 1200 over Buttermilk Creek?

It is owned by the County Highway Agency.