US Bridges

SH 64 Ml over Draw

Fair

Rio Blanco County, Colorado · 18 Miles West of SH 13 Jc · Structure no. D-04-M

Built
1948
77 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
670
2020 count
Owner
State
State Highway Agency

About this bridge

SH 64 Ml over Draw is a concrete culvert carrying SH 64 Ml over Draw in Rio Blanco County, Colorado. It was built in 1948, so it is 77 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 6 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 670 vehicles a day, roughly 16% of them trucks, projected to reach 744 by 2040. The structure is 34 ft (10.4 m) long and 59 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 64 Ml
CrossesDraw
Location18 Miles West of SH 13 Jc
RouteState Highway 64A
Coordinates40.09633, -108.23534
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.9 US tons
Inventory rating99.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width59 ft (18 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2020)
Projected traffic744 by 2040
Trucks16%
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

OwnerState Highway Agency
Maintained byState 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 SH 64 Ml over Draw built?

It was built in 1948, making it 77 years old in 2025.

What condition is SH 64 Ml over Draw 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 July 2024.

How much traffic does SH 64 Ml over Draw carry?

About 670 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is SH 64 Ml over Draw?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 59 ft wide.

Who owns SH 64 Ml over Draw?

It is owned by the State Highway Agency.