US Bridges

21st Street over Fountain Creek

Fair

El Paso County, Colorado · Just N of US 24 · Structure no. CSG-E.56-09.19

Built
1958
67 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
117 ft
3 main spans
Daily traffic
10,578
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

21st Street over Fountain Creek is a concrete continuous tee beam carrying 21st Street over Fountain Creek in El Paso County, Colorado. It was built in 1958, so it is 67 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 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 10,578 vehicles a day, roughly 5% of them trucks, projected to reach 13,857 by 2041. The structure is 117 ft (35.8 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries21st Street
CrossesFountain Creek
LocationJust N of US 24
RouteCity Street 0
Coordinates38.84141, -104.85861
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating33.3 US tons
Inventory rating25.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length117 ft (35.8 m)
Longest span45 ft (13.7 m)
Deck width52 ft (15.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,578 (2021)
Projected traffic13,857 by 2041
Trucks5%
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 21st Street over Fountain Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is 21st Street over Fountain 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 May 2024.

How much traffic does 21st Street over Fountain Creek carry?

About 10,578 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 21st Street over Fountain Creek?

The structure is 117 ft (35.8 m) long with a longest span of 45 ft (13.7 m) and a deck 52 ft wide.

Who owns 21st Street over Fountain Creek?

It is owned by the City or Municipal Highway Agency.