US Bridges

SH 59 Ml over E Spring Creek Trib.

Fair

Kit Carson County, Colorado · 14.5 MI S of JCT I 70 · Structure no. H-25-N

Built
1981
44 years old, rebuilt 1994
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
81 ft
2 main spans
Daily traffic
380
2020 count
Owner
State
State Highway Agency

About this bridge

SH 59 Ml over E Spring Creek Trib. is a steel continuous stringer/multi-beam or girder carrying SH 59 Ml over E Spring Creek Trib. in Kit Carson County, Colorado. It was built in 1981 and reconstructed in 1994, so it is 44 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 380 vehicles a day, roughly 30% of them trucks, projected to reach 490 by 2040. The structure is 81 ft (24.7 m) long and 36 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesSH 59 Ml
CrossesE Spring Creek Trib.
Location14.5 MI S of JCT I 70
RouteState Highway 59A
Coordinates39.09918, -102.86614
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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating68.6 US tons
Inventory rating41.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span39 ft (12 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2020)
Projected traffic490 by 2040
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 59 Ml over E Spring Creek Trib. built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 1994.

What condition is SH 59 Ml over E Spring Creek Trib. 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 2025.

How much traffic does SH 59 Ml over E Spring Creek Trib. carry?

About 380 vehicles per day (2020 count), of which roughly 30% are trucks.

How long is SH 59 Ml over E Spring Creek Trib.?

The structure is 81 ft (24.7 m) long with a longest span of 39 ft (12 m) and a deck 36 ft wide.

Who owns SH 59 Ml over E Spring Creek Trib.?

It is owned by the State Highway Agency.