US Bridges

SH 93 Ml over Aggregate Road

Fair

Jefferson County, Colorado · 3 MI No of JCT SH 72 · Structure no. E-15-AL

Built
1999
26 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
16,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 93 Ml over Aggregate Road is a prestressed concrete box beam or girders - multiple carrying SH 93 Ml over Aggregate Road in Jefferson County, Colorado. It was built in 1999, so it is 26 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 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 16,000 vehicles a day, roughly 4% of them trucks, projected to reach 18,400 by 2040. The structure is 77 ft (23.6 m) long and 46 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSH 93 Ml
CrossesAggregate Road
Location3 MI No of JCT SH 72
RouteState Highway 93A
CountyJefferson County
StateColorado
Coordinates39.91009, -105.24049
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating78.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length77 ft (23.6 m)
Longest span74 ft (22.7 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2020)
Projected traffic18,400 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 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 SH 93 Ml over Aggregate Road built?

It was built in 1999, making it 26 years old in 2025.

What condition is SH 93 Ml over Aggregate Road 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 2024.

How much traffic does SH 93 Ml over Aggregate Road carry?

About 16,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SH 93 Ml over Aggregate Road?

The structure is 77 ft (23.6 m) long with a longest span of 74 ft (22.7 m) and a deck 46 ft wide.

Who owns SH 93 Ml over Aggregate Road?

It is owned by the State Highway Agency.