US Bridges

CR 13 and CR 18 over Unnamed Creek

Fair

Weld County, Colorado · 1.9 MI N of HWY 52 · Structure no. FRD013.0-018.0A

Built
2005
20 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
44 ft
2 main spans
Daily traffic
13,655
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

CR 13 and CR 18 over Unnamed Creek is a concrete culvert carrying CR 13 and CR 18 over Unnamed Creek in Weld County, Colorado. It was built in 2005, so it is 20 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 13,655 vehicles a day, roughly 13% of them trucks, projected to reach 19,390 by 2042. The structure is 44 ft (13.4 m) long and 205 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 13 and CR 18
CrossesUnnamed Creek
Location1.9 MI N of HWY 52
RouteCity Street 0
Coordinates40.11699, -104.94276
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 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 evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating33.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span21 ft (6.5 m)
Deck width205 ft (62.4 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,655 (2023)
Projected traffic19,390 by 2042
Trucks13%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 CR 13 and CR 18 over Unnamed Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is CR 13 and CR 18 over Unnamed 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 March 2024.

How much traffic does CR 13 and CR 18 over Unnamed Creek carry?

About 13,655 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is CR 13 and CR 18 over Unnamed Creek?

The structure is 44 ft (13.4 m) long with a longest span of 21 ft (6.5 m) and a deck 205 ft wide.

Who owns CR 13 and CR 18 over Unnamed Creek?

It is owned by the Town or Township Highway Agency.