US Bridges

County Road 72 over Lone Tree Creek

Fair

Weld County, Colorado · 0.95 MI E of CO RD 41 · Structure no. WEL072.0-041.1A

Built
1989
36 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
90
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 72 over Lone Tree Creek is a prestressed concrete tee beam carrying County Road 72 over Lone Tree Creek in Weld County, Colorado. It was built in 1989, so it is 36 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 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 90 vehicles a day, roughly 46% of them trucks, projected to reach 128 by 2043. The structure is 31 ft (9.6 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 72
CrossesLone Tree Creek
Location0.95 MI E of CO RD 41
RouteCounty Highway 0
Coordinates40.50863, -104.65986
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length31 ft (9.6 m)
Longest span29 ft (8.9 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2023)
Projected traffic128 by 2043
Trucks46%
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 72 over Lone Tree Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is County Road 72 over Lone Tree Creek 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 May 2024.

How much traffic does County Road 72 over Lone Tree Creek carry?

About 90 vehicles per day (2023 count), of which roughly 46% are trucks.

How long is County Road 72 over Lone Tree Creek?

The structure is 31 ft (9.6 m) long with a longest span of 29 ft (8.9 m) and a deck 30 ft wide.

Who owns County Road 72 over Lone Tree Creek?

It is owned by the County Highway Agency.