US Bridges

SH 21B Nbnd Ml over Pine Creek

Good

El Paso County, Colorado · NB Powers Blvd N/ CO Sprn · Structure no. I-17-KX

Built
2014
11 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
153 ft
1 main span
Daily traffic
18,500
2020 count
Owner
State
State Highway Agency

About this bridge

SH 21B Nbnd Ml over Pine Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 21B Nbnd Ml over Pine Creek in El Paso County, Colorado. It was built in 2014, so it is 11 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,500 vehicles a day, roughly 3% of them trucks, projected to reach 27,195 by 2040. The structure is 153 ft (46.6 m) long and 59 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 21B Nbnd Ml
CrossesPine Creek
LocationNB Powers Blvd N/ CO Sprn
RouteState Highway 21B
Coordinates38.97557, -104.75215
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating32.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length153 ft (46.6 m)
Longest span150 ft (45.7 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,500 (2020)
Projected traffic27,195 by 2040
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 21B Nbnd Ml over Pine Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is SH 21B Nbnd Ml over Pine Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does SH 21B Nbnd Ml over Pine Creek carry?

About 18,500 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is SH 21B Nbnd Ml over Pine Creek?

The structure is 153 ft (46.6 m) long with a longest span of 150 ft (45.7 m) and a deck 59 ft wide.

Who owns SH 21B Nbnd Ml over Pine Creek?

It is owned by the State Highway Agency.