US Bridges

I 70 Ml Wbnd over Sand Creek

Fair

Kit Carson County, Colorado · 16.5 MI W of JCT S.H. 57 · Structure no. G-25-J

Built
1964
61 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
246 ft
6 main spans
Daily traffic
5,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Wbnd over Sand Creek is a concrete tee beam carrying I 70 Ml Wbnd over Sand Creek in Kit Carson County, Colorado. It was built in 1964, so it is 61 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 5,000 vehicles a day, roughly 27% of them trucks, projected to reach 5,900 by 2040. The structure is 246 ft (75 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml Wbnd
CrossesSand Creek
Location16.5 MI W of JCT S.H. 57
RouteInterstate 70A
Coordinates39.28782, -102.91138
Functional classRural Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.1 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckOther
Main spans6
Design loadHS 20 + Mod
Structure length246 ft (75 m)
Longest span40 ft (12.2 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2020)
Projected traffic5,900 by 2040
Trucks27%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Ml Wbnd over Sand Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is I 70 Ml Wbnd over Sand 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 2023.

How much traffic does I 70 Ml Wbnd over Sand Creek carry?

About 5,000 vehicles per day (2020 count), of which roughly 27% are trucks.

How long is I 70 Ml Wbnd over Sand Creek?

The structure is 246 ft (75 m) long with a longest span of 40 ft (12.2 m) and a deck 40 ft wide.

Who owns I 70 Ml Wbnd over Sand Creek?

It is owned by the State Highway Agency.