US Bridges

S Platte River Dri over Sanderson Gulch

Fair

Denver County, Colorado · 0.1 MI N of Florida · Structure no. D-12-SG-170A

Built
2020
5 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
68 ft
4 main spans
Daily traffic
2,581
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Platte River Dri over Sanderson Gulch is a concrete culvert carrying S Platte River Dri over Sanderson Gulch in Denver County, Colorado. It was built in 2020, so it is 5 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 2,581 vehicles a day, roughly 4% of them trucks, projected to reach 2,865 by 2041. The structure is 68 ft (20.8 m) long and 407 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS Platte River Dri
CrossesSanderson Gulch
Location0.1 MI N of Florida
RouteCity Street 0
CountyDenver County
StateColorado
Coordinates39.69018, -104.99973
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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 rating106.8 US tons
Inventory rating102.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHL 93
Structure length68 ft (20.8 m)
Longest span16 ft (4.9 m)
Deck width407 ft (124.2 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,581 (2021)
Projected traffic2,865 by 2041
Trucks4%
Lanes on structure3
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 S Platte River Dri over Sanderson Gulch built?

It was built in 2020, making it 5 years old in 2025.

What condition is S Platte River Dri over Sanderson 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 S Platte River Dri over Sanderson Gulch carry?

About 2,581 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is S Platte River Dri over Sanderson Gulch?

The structure is 68 ft (20.8 m) long with a longest span of 16 ft (4.9 m) and a deck 407 ft wide.

Who owns S Platte River Dri over Sanderson Gulch?

It is owned by the City or Municipal Highway Agency.