US Bridges

I 70 Ml Ebnd over Agate Crk or (bijou Crk)

Fair

Elbert County, Colorado · 0.7 MI E of RD to Agate · Structure no. G-21-F

Built
1958
67 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
109 ft
3 main spans
Daily traffic
5,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Ebnd over Agate Crk or (bijou Crk) is a concrete tee beam carrying I 70 Ml Ebnd over Agate Crk or (bijou Crk) in Elbert County, Colorado. It was built in 1958, so it is 67 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 5,500 vehicles a day, roughly 35% of them trucks, projected to reach 6,765 by 2040. The structure is 109 ft (33.2 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml Ebnd
CrossesAgate Crk or (bijou Crk)
Location0.7 MI E of RD to Agate
RouteInterstate 70A
Coordinates39.4528, -103.93243
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating76.4 US tons
Inventory rating45.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length109 ft (33.2 m)
Longest span35 ft (10.7 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2020)
Projected traffic6,765 by 2040
Trucks35%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 70 Ml Ebnd over Agate Crk or (bijou Crk) built?

It was built in 1958, making it 67 years old in 2025.

What condition is I 70 Ml Ebnd over Agate Crk or (bijou Crk) 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 April 2023.

How much traffic does I 70 Ml Ebnd over Agate Crk or (bijou Crk) carry?

About 5,500 vehicles per day (2020 count), of which roughly 35% are trucks.

How long is I 70 Ml Ebnd over Agate Crk or (bijou Crk)?

The structure is 109 ft (33.2 m) long with a longest span of 35 ft (10.7 m) and a deck 42 ft wide.

Who owns I 70 Ml Ebnd over Agate Crk or (bijou Crk)?

It is owned by the State Highway Agency.