US Bridges

County RD 13 over Unnamed Creek

Poor

Weld County, Colorado · 0.95 MI N of CO RD 60 · Structure no. WEL013.0_048.0A

Built
1999
26 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
3,820
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 13 over Unnamed Creek is a steel stringer/multi-beam or girder carrying County RD 13 over Unnamed Creek in Weld County, Colorado. It was built in 1999, so it is 26 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,820 vehicles a day, roughly 6% of them trucks, projected to reach 5,425 by 2043. The structure is 23 ft (7 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty RD 13
CrossesUnnamed Creek
Location0.95 MI N of CO RD 60
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.34889, -104.94347
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.3 US tons
Inventory rating39.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span20 ft (6.2 m)
Deck width34 ft (10.4 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,820 (2023)
Projected traffic5,425 by 2043
Trucks6%
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 RD 13 over Unnamed Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is County RD 13 over Unnamed Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does County RD 13 over Unnamed Creek carry?

About 3,820 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is County RD 13 over Unnamed Creek?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.2 m) and a deck 34 ft wide.

Who owns County RD 13 over Unnamed Creek?

It is owned by the County Highway Agency.