US Bridges

Main Street over Drainage

Fair

Jefferson County, Colorado · W. of Kipling Street · Structure no. 2195009P0000000

Built
1942
83 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
1,100
2019 count
Owner
Unknown

About this bridge

Main Street over Drainage is a steel stringer/multi-beam or girder carrying Main Street over Drainage in Jefferson County, Colorado. It was built in 1942, so it is 83 years old, older 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 5 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 1,100 vehicles a day, projected to reach 1,210 by 2039. The structure is 32 ft (9.8 m) long and 69 ft wide.

Location

Open in Google Maps
CarriesMain Street
CrossesDrainage
LocationW. of Kipling Street
RouteFederal Lands Road 0
CountyJefferson County
StateColorado
Coordinates39.71664, -105.11396
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating33 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span26 ft (7.9 m)
Deck width69 ft (20.9 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2019)
Projected traffic1,210 by 2039
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNot reported
Maintained byNot reported
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$143,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over Drainage built?

It was built in 1942, making it 83 years old in 2025.

What condition is Main Street over Drainage 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 April 2023.

How much traffic does Main Street over Drainage carry?

About 1,100 vehicles per day (2019 count).

How long is Main Street over Drainage?

The structure is 32 ft (9.8 m) long with a longest span of 26 ft (7.9 m) and a deck 69 ft wide.

Who owns Main Street over Drainage?

It is owned by the owner is not reported.