US Bridges

Castle Oaks Drive over Mcmurdo Gulch

Fair

Douglas County, Colorado · 2.7 MI E Founders Pkway · Structure no. CAS CASOAK-2.7

Built
1975
50 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
3,289
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Castle Oaks Drive over Mcmurdo Gulch is a steel stringer/multi-beam or girder carrying Castle Oaks Drive over Mcmurdo Gulch in Douglas County, Colorado. It was built in 1975, so it is 50 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. Its operating status is: open, posting recommended but not legally implemented.

It carries about 3,289 vehicles a day, projected to reach 4,407 by 2041. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCastle Oaks Drive
CrossesMcmurdo Gulch
Location2.7 MI E Founders Pkway
RouteCity Street 0
CountyDouglas County
StateColorado
Coordinates39.40525, -104.81242
Functional classUrban Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, posting recommended but not legally implemented
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating26.5 US tons
Inventory rating15.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,289 (2021)
Projected traffic4,407 by 2041
Trucks0%
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

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 Castle Oaks Drive over Mcmurdo Gulch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Castle Oaks Drive over Mcmurdo Gulch 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 February 2025.

How much traffic does Castle Oaks Drive over Mcmurdo Gulch carry?

About 3,289 vehicles per day (2021 count).

How long is Castle Oaks Drive over Mcmurdo Gulch?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.

Who owns Castle Oaks Drive over Mcmurdo Gulch?

It is owned by the Town or Township Highway Agency.