US Bridges

County Road 70 over New Cache Lapoudre Canal

Fair

Weld County, Colorado · 0.8 MI E of CO RD 49 · Structure no. WEL070.0-049.1B

Built
1985
40 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
36
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 70 over New Cache Lapoudre Canal is a steel stringer/multi-beam or girder carrying County Road 70 over New Cache Lapoudre Canal in Weld County, Colorado. It was built in 1985, so it is 40 years old, younger 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 36 vehicles a day, roughly 34% of them trucks, projected to reach 51 by 2042. The structure is 30 ft (9.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 70
CrossesNew Cache Lapoudre Canal
Location0.8 MI E of CO RD 49
RouteCounty Highway 0
Coordinates40.493, -104.586
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating22 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length30 ft (9.2 m)
Longest span26 ft (8 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2023)
Projected traffic51 by 2042
Trucks34%
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

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 70 over New Cache Lapoudre Canal built?

It was built in 1985, making it 40 years old in 2025.

What condition is County Road 70 over New Cache Lapoudre 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 March 2024.

How much traffic does County Road 70 over New Cache Lapoudre Canal carry?

About 36 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is County Road 70 over New Cache Lapoudre Canal?

The structure is 30 ft (9.2 m) long with a longest span of 26 ft (8 m) and a deck 32 ft wide.

Who owns County Road 70 over New Cache Lapoudre Canal?

It is owned by the County Highway Agency.