US Bridges

I 70 Vona Spur over Spring Creek

Fair

Kit Carson County, Colorado · 18.7 Mi. E. of Flagler · Structure no. G-26-A

Built
1966
59 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete
Length
157 ft
4 main spans
Daily traffic
190
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Vona Spur over Spring Creek is a concrete tee beam carrying I 70 Vona Spur over Spring Creek in Kit Carson County, Colorado. It was built in 1966, so it is 59 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 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 190 vehicles a day, roughly 9% of them trucks, projected to reach 264 by 2040. The structure is 157 ft (47.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI 70 Vona Spur
CrossesSpring Creek
Location18.7 Mi. E. of Flagler
RouteState Highway 70P
CountyKit Carson County
StateColorado
Coordinates39.29753, -102.74329
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span38 ft (11.6 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2020)
Projected traffic264 by 2040
Trucks9%
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

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 I 70 Vona Spur over Spring Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is I 70 Vona Spur over Spring 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 July 2023.

How much traffic does I 70 Vona Spur over Spring Creek carry?

About 190 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is I 70 Vona Spur over Spring Creek?

The structure is 157 ft (47.9 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.

Who owns I 70 Vona Spur over Spring Creek?

It is owned by the State Highway Agency.