US Bridges

US 6 Ml over Lwr Platte Beaver Canal

Fair

Morgan County, Colorado · 3.2 MI NE of JCTI76BRUSH · Structure no. C-22-F

Built
1941
84 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
1,400
2020 count
Owner
State
State Highway Agency

About this bridge

US 6 Ml over Lwr Platte Beaver Canal is a steel stringer/multi-beam or girder carrying US 6 Ml over Lwr Platte Beaver Canal in Morgan County, Colorado. It was built in 1941, so it is 84 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 1,400 vehicles a day, roughly 11% of them trucks, projected to reach 2,044 by 2040. The structure is 27 ft (8.2 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 6 Ml
CrossesLwr Platte Beaver Canal
Location3.2 MI NE of JCTI76BRUSH
RouteU.S. Route 6J
Coordinates40.30605, -103.54714
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2020)
Projected traffic2,044 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 US 6 Ml over Lwr Platte Beaver Canal built?

It was built in 1941, making it 84 years old in 2025.

What condition is US 6 Ml over Lwr Platte Beaver Canal 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 January 2024.

How much traffic does US 6 Ml over Lwr Platte Beaver Canal carry?

About 1,400 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is US 6 Ml over Lwr Platte Beaver Canal?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 34 ft wide.

Who owns US 6 Ml over Lwr Platte Beaver Canal?

It is owned by the State Highway Agency.