US Bridges

SH 8 Ml over Bear Creek

Fair

Jefferson County, Colorado · In Morrison · Structure no. F-16-SR

Built
1993
32 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
148 ft
1 main span
Daily traffic
4,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 8 Ml over Bear Creek is a prestressed concrete box beam or girders - multiple carrying SH 8 Ml over Bear Creek in Jefferson County, Colorado. It was built in 1993, so it is 32 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 4,000 vehicles a day, roughly 2% of them trucks, projected to reach 4,640 by 2040. The structure is 148 ft (45 m) long and 53 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSH 8 Ml
CrossesBear Creek
LocationIn Morrison
RouteState Highway 8A
Coordinates39.65334, -105.1952
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.9 US tons
Inventory rating43.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length148 ft (45 m)
Longest span145 ft (44.2 m)
Deck width53 ft (16.2 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2020)
Projected traffic4,640 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 8 Ml over Bear Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is SH 8 Ml over Bear Creek 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 December 2024.

How much traffic does SH 8 Ml over Bear Creek carry?

About 4,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 8 Ml over Bear Creek?

The structure is 148 ft (45 m) long with a longest span of 145 ft (44.2 m) and a deck 53 ft wide.

Who owns SH 8 Ml over Bear Creek?

It is owned by the State Highway Agency.