US Bridges

Astrozon Blvd over Main Stream

Fair

El Paso County, Colorado · 0.3 MI N of Drennan Road · Structure no. CSG-J.73-05.23

Built
1982
43 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
45 ft
2 main spans
Daily traffic
3,631
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Astrozon Blvd over Main Stream is a concrete continuous slab carrying Astrozon Blvd over Main Stream in El Paso County, Colorado. It was built in 1982, so it is 43 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 3,631 vehicles a day, roughly 6% of them trucks, projected to reach 4,757 by 2041. The structure is 45 ft (13.8 m) long and 70 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAstrozon Blvd
CrossesMain Stream
Location0.3 MI N of Drennan Road
RouteCity Street 0
Coordinates38.78397, -104.76589
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 inspectionMarch 2024
Inspection intervalevery 48 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 alignment7: Better than present minimum criteria
Operating rating85.6 US tons
Inventory rating51.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length45 ft (13.8 m)
Longest span22 ft (6.6 m)
Deck width70 ft (21.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,631 (2021)
Projected traffic4,757 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Astrozon Blvd over Main Stream built?

It was built in 1982, making it 43 years old in 2025.

What condition is Astrozon Blvd over Main Stream 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 March 2024.

How much traffic does Astrozon Blvd over Main Stream carry?

About 3,631 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Astrozon Blvd over Main Stream?

The structure is 45 ft (13.8 m) long with a longest span of 22 ft (6.6 m) and a deck 70 ft wide.

Who owns Astrozon Blvd over Main Stream?

It is owned by the City or Municipal Highway Agency.