US Bridges

SH 83 Ml over Russellville Gulch

Good

Douglas County, Colorado · 11.5 MI N of JCT SH 105 · Structure no. G-17-BN

Built
1976
49 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
63 ft
3 main spans
Daily traffic
7,900
2020 count
Owner
State
State Highway Agency

About this bridge

SH 83 Ml over Russellville Gulch is a concrete culvert carrying SH 83 Ml over Russellville Gulch in Douglas 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,900 vehicles a day, roughly 6% of them trucks, projected to reach 12,324 by 2040. The structure is 63 ft (19.2 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSH 83 Ml
CrossesRussellville Gulch
Location11.5 MI N of JCT SH 105
RouteState Highway 83A
Coordinates39.37232, -104.74925
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100.4 US tons
Inventory rating61.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span26 ft (8 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,900 (2020)
Projected traffic12,324 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 83 Ml over Russellville Gulch built?

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

What condition is SH 83 Ml over Russellville Gulch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does SH 83 Ml over Russellville Gulch carry?

About 7,900 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is SH 83 Ml over Russellville Gulch?

The structure is 63 ft (19.2 m) long with a longest span of 26 ft (8 m) and a deck 47 ft wide.

Who owns SH 83 Ml over Russellville Gulch?

It is owned by the State Highway Agency.