US Bridges

Calhan HWY over Big Sandy Creek

Fair

El Paso County, Colorado · 1.5 MI N of Calhan · Structure no. EPC0129-12.20A

Built
1986
39 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
61 ft
2 main spans
Daily traffic
2,780
2020 count
Owner
County
County Highway Agency

About this bridge

Calhan HWY over Big Sandy Creek is a steel continuous stringer/multi-beam or girder carrying Calhan HWY over Big Sandy Creek in El Paso County, Colorado. It was built in 1986, so it is 39 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 2,780 vehicles a day, roughly 2% of them trucks, projected to reach 3,641 by 2040. The structure is 61 ft (18.6 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCalhan HWY
CrossesBig Sandy Creek
Location1.5 MI N of Calhan
RouteCounty Highway 0
Coordinates39.05899, -104.29343
Functional classRural 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.4 US tons
Inventory rating40.3 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span28 ft (8.6 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,780 (2020)
Projected traffic3,641 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Calhan HWY over Big Sandy Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Calhan HWY over Big Sandy 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 February 2024.

How much traffic does Calhan HWY over Big Sandy Creek carry?

About 2,780 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Calhan HWY over Big Sandy Creek?

The structure is 61 ft (18.6 m) long with a longest span of 28 ft (8.6 m) and a deck 40 ft wide.

Who owns Calhan HWY over Big Sandy Creek?

It is owned by the County Highway Agency.