US Bridges

County Road 47 over Lone Tree Creek

Fair

Weld County, Colorado · 0.2 MI N of ST HWY 392 · Structure no. WEL047.0-068.0A

Built
1990
35 years old, rebuilt 2017
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
801
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 47 over Lone Tree Creek is a steel stringer/multi-beam or girder carrying County Road 47 over Lone Tree Creek in Weld County, Colorado. It was built in 1990 and reconstructed in 2017, so it is 35 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 801 vehicles a day, roughly 63% of them trucks, projected to reach 1,137 by 2043. The structure is 28 ft (8.6 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 47
CrossesLone Tree Creek
Location0.2 MI N of ST HWY 392
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.48186, -104.62101
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length28 ft (8.6 m)
Longest span25 ft (7.6 m)
Deck width35 ft (10.7 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic801 (2023)
Projected traffic1,137 by 2043
Trucks63%
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 47 over Lone Tree Creek built?

It was built in 1990, making it 35 years old in 2025. It was reconstructed in 2017.

What condition is County Road 47 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 47 over Lone Tree Creek carry?

About 801 vehicles per day (2023 count), of which roughly 63% are trucks.

How long is County Road 47 over Lone Tree Creek?

The structure is 28 ft (8.6 m) long with a longest span of 25 ft (7.6 m) and a deck 35 ft wide.

Who owns County Road 47 over Lone Tree Creek?

It is owned by the County Highway Agency.