US Bridges

County Road L.7 over El Poso Creek

Fair

Costilla County, Colorado · Just W of CR 25.5 · Structure no. CS152-56-242AA

Built
1997
28 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
78
2022 count
Owner
County
County Highway Agency

About this bridge

County Road L.7 over El Poso Creek is a steel stringer/multi-beam or girder carrying County Road L.7 over El Poso Creek in Costilla County, Colorado. It was built in 1997, so it is 28 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 5 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 78 vehicles a day, projected to reach 87 by 2042. The structure is 48 ft (14.6 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road L.7
CrossesEl Poso Creek
LocationJust W of CR 25.5
RouteCounty Highway 0
CountyCostilla County
StateColorado
Coordinates37.1815, -105.32077
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78.8 US tons
Inventory rating47.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span43 ft (13.1 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2022)
Projected traffic87 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 County Road L.7 over El Poso Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is County Road L.7 over El Poso 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 March 2025.

How much traffic does County Road L.7 over El Poso Creek carry?

About 78 vehicles per day (2022 count).

How long is County Road L.7 over El Poso Creek?

The structure is 48 ft (14.6 m) long with a longest span of 43 ft (13.1 m) and a deck 32 ft wide.

Who owns County Road L.7 over El Poso Creek?

It is owned by the County Highway Agency.