US Bridges

I 270 Ml Wbnd over SH 265 Ml UP RR BNSF RR

Poor

Adams County, Colorado · In Commerce City · Structure no. E-17-IH

Built
1969
56 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
369 ft
4 main spans
Daily traffic
48,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 270 Ml Wbnd over SH 265 Ml UP RR BNSF RR is a steel continuous stringer/multi-beam or girder carrying I 270 Ml Wbnd over SH 265 Ml UP RR BNSF RR in Adams County, Colorado. It was built in 1969, so it is 56 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 48,500 vehicles a day, roughly 11% of them trucks, projected to reach 59,170 by 2040. The structure is 369 ft (112.5 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 270 Ml Wbnd
CrossesSH 265 Ml UP RR BNSF RR
LocationIn Commerce City
RouteInterstate 270A
Coordinates39.80661, -104.94157
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.8 US tons
Inventory rating31.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length369 ft (112.5 m)
Longest span98 ft (29.9 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,500 (2020)
Projected traffic59,170 by 2040
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$7.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 270 Ml Wbnd over SH 265 Ml UP RR BNSF RR built?

It was built in 1969, making it 56 years old in 2025.

What condition is I 270 Ml Wbnd over SH 265 Ml UP RR BNSF RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does I 270 Ml Wbnd over SH 265 Ml UP RR BNSF RR carry?

About 48,500 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is I 270 Ml Wbnd over SH 265 Ml UP RR BNSF RR?

The structure is 369 ft (112.5 m) long with a longest span of 98 ft (29.9 m) and a deck 40 ft wide.

Who owns I 270 Ml Wbnd over SH 265 Ml UP RR BNSF RR?

It is owned by the State Highway Agency.