US Bridges

I 70 Ml Wbnd over County Roads 28N 113

Poor

Adams County, Colorado · 5 MI W of JCT SH 79 · Structure no. F-18-AT

Built
1960
65 years old, rebuilt 1985
Condition
Poor
inspected May 2023
Type
Tee Beam
Concrete
Length
94 ft
3 main spans
Daily traffic
13,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Wbnd over County Roads 28N 113 is a concrete tee beam carrying I 70 Ml Wbnd over County Roads 28N 113 in Adams County, Colorado. It was built in 1960 and reconstructed in 1985, so it is 65 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 13,000 vehicles a day, roughly 18% of them trucks, projected to reach 17,420 by 2040. The structure is 94 ft (28.7 m) long and 42 ft wide.

CarriesI 70 Ml Wbnd
CrossesCounty Roads 28N 113
Location5 MI W of JCT SH 79
RouteInterstate 70A
Coordinates39.73886, -104.52714
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.7 US tons
Inventory rating48.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2020)
Projected traffic17,420 by 2040
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 County Roads 28N 113 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1985.

What condition is I 70 Ml Wbnd over County Roads 28N 113 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 May 2023.

How much traffic does I 70 Ml Wbnd over County Roads 28N 113 carry?

About 13,000 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is I 70 Ml Wbnd over County Roads 28N 113?

The structure is 94 ft (28.7 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns I 70 Ml Wbnd over County Roads 28N 113?

It is owned by the State Highway Agency.