US Bridges

Ramp to Tamarac over I 225 Ml Nbnd R

Fair

Denver County, Colorado · In Denver · Structure no. F-17-GW

Built
1976
49 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
320 ft
3 main spans
Daily traffic
6,855
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp to Tamarac over I 225 Ml Nbnd R is a concrete continuous box beam or girders - multiple carrying Ramp to Tamarac over I 225 Ml Nbnd R in Denver County, Colorado. It was built in 1976, so it is 49 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 6,855 vehicles a day, roughly 7% of them trucks, projected to reach 7,609 by 2044. The structure is 320 ft (97.5 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRamp to Tamarac
CrossesI 225 Ml Nbnd R
LocationIn Denver
Coordinates39.63468, -104.90048
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.6 US tons
Inventory rating22.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length320 ft (97.5 m)
Longest span122 ft (37.2 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,855 (2024)
Projected traffic7,609 by 2044
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 Ramp to Tamarac over I 225 Ml Nbnd R built?

It was built in 1976, making it 49 years old in 2025.

What condition is Ramp to Tamarac over I 225 Ml Nbnd R 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 June 2023.

How much traffic does Ramp to Tamarac over I 225 Ml Nbnd R carry?

About 6,855 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Ramp to Tamarac over I 225 Ml Nbnd R?

The structure is 320 ft (97.5 m) long with a longest span of 122 ft (37.2 m) and a deck 44 ft wide.

Who owns Ramp to Tamarac over I 225 Ml Nbnd R?

It is owned by the State Highway Agency.