US Bridges

SH 21-POWERS Blvd over Sand Creek

Fair

El Paso County, Colorado · 0.3 MI N Palmer Park Blvd · Structure no. I-17-NF

Built
1987
38 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
107 ft
6 main spans
Daily traffic
60,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 21-POWERS Blvd over Sand Creek is a concrete culvert carrying SH 21-POWERS Blvd over Sand Creek in El Paso County, Colorado. It was built in 1987, so it is 38 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 60,000 vehicles a day, roughly 6% of them trucks, projected to reach 74,400 by 2040. The structure is 107 ft (32.7 m) long and 152 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 21-POWERS Blvd
CrossesSand Creek
Location0.3 MI N Palmer Park Blvd
RouteState Highway 21B
Coordinates38.86241, -104.71991
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating104.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length107 ft (32.7 m)
Longest span17 ft (5.2 m)
Deck width152 ft (46.2 m)
Roadway width149 ft (45.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,000 (2020)
Projected traffic74,400 by 2040
Trucks6%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 21-POWERS Blvd over Sand Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is SH 21-POWERS Blvd over Sand 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 2024.

How much traffic does SH 21-POWERS Blvd over Sand Creek carry?

About 60,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is SH 21-POWERS Blvd over Sand Creek?

The structure is 107 ft (32.7 m) long with a longest span of 17 ft (5.2 m) and a deck 152 ft wide.

Who owns SH 21-POWERS Blvd over Sand Creek?

It is owned by the State Highway Agency.