US Bridges

County Road 67 over Simpson Creek

Fair

Weld County, Colorado · 0.9 MI N of CO RD 128 · Structure no. WEL067.0-128.0A

Built
1990
35 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
23
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 67 over Simpson Creek is a steel stringer/multi-beam or girder carrying County Road 67 over Simpson Creek in Weld County, Colorado. It was built in 1990, 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 23 vehicles a day, roughly 60% of them trucks, projected to reach 32 by 2043. The structure is 39 ft (12 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCounty Road 67
CrossesSimpson Creek
Location0.9 MI N of CO RD 128
RouteCounty Highway 0
Coordinates40.92783, -104.42847
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.
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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.2 US tons
Inventory rating29.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length39 ft (12 m)
Longest span37 ft (11.3 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2023)
Projected traffic32 by 2043
Trucks60%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 67 over Simpson Creek built?

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

What condition is County Road 67 over Simpson 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 67 over Simpson Creek carry?

About 23 vehicles per day (2023 count), of which roughly 60% are trucks.

How long is County Road 67 over Simpson Creek?

The structure is 39 ft (12 m) long with a longest span of 37 ft (11.3 m) and a deck 31 ft wide.

Who owns County Road 67 over Simpson Creek?

It is owned by the County Highway Agency.