US Bridges

CO RD 42/42nd LN over Six Mile Creek

Fair

Pueblo County, Colorado · 1.2 MI S of Sante Fe DR · Structure no. PUCO 0.04-409A

Built
1950
75 years old
Condition
Fair
inspected November 2024
Type
Truss - Thru
Steel
Length
66 ft
1 main span
Daily traffic
108
2021 count
Owner
County
County Highway Agency

About this bridge

CO RD 42/42nd LN over Six Mile Creek is a steel truss - thru carrying CO RD 42/42nd LN over Six Mile Creek in Pueblo County, Colorado. It was built in 1950, so it is 75 years old, older 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 5 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 108 vehicles a day, roughly 2% of them trucks, projected to reach 128 by 2041. The structure is 66 ft (20 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCO RD 42/42nd LN
CrossesSix Mile Creek
Location1.2 MI S of Sante Fe DR
RouteCounty Highway 0
Coordinates38.22679, -104.40457
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment7: Better than present minimum criteria
Operating rating44.8 US tons
Inventory rating26.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length66 ft (20 m)
Longest span60 ft (18.2 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108 (2021)
Projected traffic128 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 42/42nd LN over Six Mile Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is CO RD 42/42nd LN over Six Mile 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 November 2024.

How much traffic does CO RD 42/42nd LN over Six Mile Creek carry?

About 108 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is CO RD 42/42nd LN over Six Mile Creek?

The structure is 66 ft (20 m) long with a longest span of 60 ft (18.2 m) and a deck 24 ft wide.

Who owns CO RD 42/42nd LN over Six Mile Creek?

It is owned by the County Highway Agency.