US Bridges

Inverness Drive So over Cottonwood Creek

Fair

Douglas County, Colorado · Inter of Invernes Way · Structure no. DOU08C-00.01

Built
1991
34 years old, rebuilt 2000
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
2,037
2021 count
Owner
County
County Highway Agency

About this bridge

Inverness Drive So over Cottonwood Creek is a steel stringer/multi-beam or girder carrying Inverness Drive So over Cottonwood Creek in Douglas County, Colorado. It was built in 1991 and reconstructed in 2000, so it is 34 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 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 2,037 vehicles a day, roughly 5% of them trucks, projected to reach 2,729 by 2041. The structure is 55 ft (16.7 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesInverness Drive So
CrossesCottonwood Creek
LocationInter of Invernes Way
RouteCounty Highway 0
CountyDouglas County
StateColorado
Coordinates39.56467, -104.86058
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.1 US tons
Inventory rating53.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length55 ft (16.7 m)
Longest span50 ft (15.1 m)
Deck width65 ft (19.8 m)
Roadway width48 ft (14.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,037 (2021)
Projected traffic2,729 by 2041
Trucks5%
Lanes on structure4
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$281,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Inverness Drive So over Cottonwood Creek built?

It was built in 1991, making it 34 years old in 2025. It was reconstructed in 2000.

What condition is Inverness Drive So over Cottonwood 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 January 2025.

How much traffic does Inverness Drive So over Cottonwood Creek carry?

About 2,037 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Inverness Drive So over Cottonwood Creek?

The structure is 55 ft (16.7 m) long with a longest span of 50 ft (15.1 m) and a deck 65 ft wide.

Who owns Inverness Drive So over Cottonwood Creek?

It is owned by the County Highway Agency.