US Bridges

SH 10 Ml over Saunders Arroyo

Fair

Pueblo County, Colorado · 35 MI E of Walsenbrg · Structure no. M-20-P

Built
1989
36 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
390
2020 count
Owner
State
State Highway Agency

About this bridge

SH 10 Ml over Saunders Arroyo is a prestressed concrete stringer/multi-beam or girder carrying SH 10 Ml over Saunders Arroyo in Pueblo County, Colorado. It was built in 1989, so it is 36 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 390 vehicles a day, roughly 21% of them trucks, projected to reach 468 by 2040. The structure is 130 ft (39.6 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 10 Ml
CrossesSaunders Arroyo
Location35 MI E of Walsenbrg
RouteState Highway 10A
Coordinates37.85296, -104.19575
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating95.7 US tons
Inventory rating40.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span128 ft (39 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2020)
Projected traffic468 by 2040
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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 10 Ml over Saunders Arroyo built?

It was built in 1989, making it 36 years old in 2025.

What condition is SH 10 Ml over Saunders Arroyo 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 SH 10 Ml over Saunders Arroyo carry?

About 390 vehicles per day (2020 count), of which roughly 21% are trucks.

How long is SH 10 Ml over Saunders Arroyo?

The structure is 130 ft (39.6 m) long with a longest span of 128 ft (39 m) and a deck 38 ft wide.

Who owns SH 10 Ml over Saunders Arroyo?

It is owned by the State Highway Agency.