US Bridges

E 78th Avenue over Third Creek Trib

Fair

Denver County, Colorado · Just W of Jackson Gap RD · Structure no. D-31-PB-510

Built
1992
33 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
18,020
2021 count
Owner
Local
Other Local Agency

About this bridge

E 78th Avenue over Third Creek Trib is a concrete culvert carrying E 78th Avenue over Third Creek Trib in Denver County, Colorado. It was built in 1992, so it is 33 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 18,020 vehicles a day, roughly 6% of them trucks, projected to reach 20,002 by 2041. The structure is 24 ft (7.3 m) long and 121 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE 78th Avenue
CrossesThird Creek Trib
LocationJust W of Jackson Gap RD
RouteCity Street 0
Coordinates39.83775, -104.69381
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span11 ft (3.5 m)
Deck width121 ft (36.8 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,020 (2021)
Projected traffic20,002 by 2041
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 E 78th Avenue over Third Creek Trib built?

It was built in 1992, making it 33 years old in 2025.

What condition is E 78th Avenue over Third Creek Trib 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 January 2025.

How much traffic does E 78th Avenue over Third Creek Trib carry?

About 18,020 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is E 78th Avenue over Third Creek Trib?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.5 m) and a deck 121 ft wide.

Who owns E 78th Avenue over Third Creek Trib?

It is owned by the Other Local Agency.