US Bridges

US-56 over Chico Creek

Fair

Colfax County, New Mexico · 10.5 MI E JCT US58 L0016 · Structure no. 000000000009069

Built
1999
26 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
145 ft
2 main spans
Daily traffic
1,111
2023 count
Owner
State
State Highway Agency

About this bridge

US-56 over Chico Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US-56 over Chico Creek in Colfax County, New Mexico. It was built in 1999, so it is 26 years old, younger than the New Mexico average of 51.5 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 1,111 vehicles a day, roughly 11% of them trucks, projected to reach 1,510 by 2043. The structure is 145 ft (44.2 m) long and 43 ft wide.

CarriesUS-56
CrossesChico Creek
Location10.5 MI E JCT US58 L0016
RouteU.S. Route 56
Coordinates36.32005, -104.4201
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span72 ft (21.9 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,111 (2023)
Projected traffic1,510 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-56 over Chico Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is US-56 over Chico 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 November 2024.

How much traffic does US-56 over Chico Creek carry?

About 1,111 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US-56 over Chico Creek?

The structure is 145 ft (44.2 m) long with a longest span of 72 ft (21.9 m) and a deck 43 ft wide.

Who owns US-56 over Chico Creek?

It is owned by the State Highway Agency.