US Bridges

SH 64 Ml over Hammond Draw

Fair

Rio Blanco County, Colorado · 12 MI E of JCT SH 139 · Structure no. D-02-F

Built
1949
76 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
2 main spans
Daily traffic
670
2020 count
Owner
State
State Highway Agency

About this bridge

SH 64 Ml over Hammond Draw is a steel stringer/multi-beam or girder carrying SH 64 Ml over Hammond Draw in Rio Blanco County, Colorado. It was built in 1949, so it is 76 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 670 vehicles a day, roughly 16% of them trucks, projected to reach 744 by 2040. The structure is 74 ft (22.7 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 64 Ml
CrossesHammond Draw
Location12 MI E of JCT SH 139
RouteState Highway 64A
Coordinates40.16576, -108.61566
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length74 ft (22.7 m)
Longest span35 ft (10.7 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 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 closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 64 Ml over Hammond Draw built?

It was built in 1949, making it 76 years old in 2025.

What condition is SH 64 Ml over Hammond 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 Hammond Draw carry?

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

How long is SH 64 Ml over Hammond Draw?

The structure is 74 ft (22.7 m) long with a longest span of 35 ft (10.7 m) and a deck 28 ft wide.

Who owns SH 64 Ml over Hammond Draw?

It is owned by the State Highway Agency.