US Bridges

S Platte River Dr. over Little Dry Creek

Fair

Arapahoe County, Colorado · .1 M S of Dartmouth · Structure no. ENGLWD-PLLDA

Built
1984
41 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
2,227
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Platte River Dr. over Little Dry Creek is a prestressed concrete box beam or girders - single or spread carrying S Platte River Dr. over Little Dry Creek in Arapahoe County, Colorado. It was built in 1984, so it is 41 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 2,227 vehicles a day, roughly 4% of them trucks, projected to reach 2,717 by 2041. The structure is 71 ft (21.5 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS Platte River Dr.
CrossesLittle Dry Creek
Location.1 M S of Dartmouth
RouteCity Street 0
Coordinates39.65972, -105.0025
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.2 US tons
Inventory rating35.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.5 m)
Longest span66 ft (20 m)
Deck width54 ft (16.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,227 (2021)
Projected traffic2,717 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

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 Dr. over Little Dry Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is S Platte River Dr. over Little Dry 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 September 2023.

How much traffic does S Platte River Dr. over Little Dry Creek carry?

About 2,227 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is S Platte River Dr. over Little Dry Creek?

The structure is 71 ft (21.5 m) long with a longest span of 66 ft (20 m) and a deck 54 ft wide.

Who owns S Platte River Dr. over Little Dry Creek?

It is owned by the City or Municipal Highway Agency.