US Bridges

I 225 Ml Sbnd over I 70 Ml

Fair

Adams County, Colorado · Denver · Structure no. E-17-SW

Built
1994
31 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
1,967 ft
8 main spans
Daily traffic
60,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 225 Ml Sbnd over I 70 Ml is a steel continuous box beam or girders - single or spread carrying I 225 Ml Sbnd over I 70 Ml in Adams County, Colorado. It was built in 1994, so it is 31 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 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 60,500 vehicles a day, roughly 7% of them trucks, projected to reach 77,440 by 2040. The structure is 1,967 ft (599.5 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI 225 Ml Sbnd
CrossesI 70 Ml
LocationDenver
RouteInterstate 225A
Coordinates39.76901, -104.82825
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.1 US tons
Inventory rating21.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length1,967 ft (599.5 m)
Longest span280 ft (85.3 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,500 (2020)
Projected traffic77,440 by 2040
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 225 Ml Sbnd over I 70 Ml built?

It was built in 1994, making it 31 years old in 2025.

What condition is I 225 Ml Sbnd over I 70 Ml 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 September 2023.

How much traffic does I 225 Ml Sbnd over I 70 Ml carry?

About 60,500 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is I 225 Ml Sbnd over I 70 Ml?

The structure is 1,967 ft (599.5 m) long with a longest span of 280 ft (85.3 m) and a deck 47 ft wide.

Who owns I 225 Ml Sbnd over I 70 Ml?

It is owned by the State Highway Agency.