US Bridges

South Gilbert Stre over Sellars Gulch Tributary

Fair

Douglas County, Colorado · 0.1 Mile S. of South St. · Structure no. CAS GILBERT-.2

Built
1985
40 years old
Condition
Fair
inspected February 2025
Type
Tee Beam
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
7,806
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

South Gilbert Stre over Sellars Gulch Tributary is a prestressed concrete tee beam carrying South Gilbert Stre over Sellars Gulch Tributary in Douglas County, Colorado. It was built in 1985, so it is 40 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 7,806 vehicles a day, roughly 4% of them trucks, projected to reach 10,460 by 2041. The structure is 43 ft (13.1 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth Gilbert Stre
CrossesSellars Gulch Tributary
Location0.1 Mile S. of South St.
RouteCity Street 0
Coordinates39.36827, -104.85264
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
Deck9 ExcellentNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width56 ft (17.1 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,806 (2021)
Projected traffic10,460 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 South Gilbert Stre over Sellars Gulch Tributary built?

It was built in 1985, making it 40 years old in 2025.

What condition is South Gilbert Stre over Sellars Gulch Tributary 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 South Gilbert Stre over Sellars Gulch Tributary carry?

About 7,806 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is South Gilbert Stre over Sellars Gulch Tributary?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 56 ft wide.

Who owns South Gilbert Stre over Sellars Gulch Tributary?

It is owned by the Town or Township Highway Agency.