US Bridges

Bannock ST over Cherry Creek

Fair

Denver County, Colorado · Bannock ST at Speer Blvd · Structure no. D-01-CC-172

Built
1989
36 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
3,412
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bannock ST over Cherry Creek is a prestressed concrete box beam or girders - multiple carrying Bannock ST over Cherry Creek in Denver County, Colorado. It was built in 1989, so it is 36 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 3,412 vehicles a day, roughly 4% of them trucks, projected to reach 3,787 by 2041. The structure is 84 ft (25.5 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBannock ST
CrossesCherry Creek
LocationBannock ST at Speer Blvd
RouteCity Street 0
CountyDenver County
StateColorado
Coordinates39.72831, -104.98983
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.2 US tons
Inventory rating27.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length84 ft (25.5 m)
Longest span81 ft (24.7 m)
Deck width45 ft (13.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,412 (2021)
Projected traffic3,787 by 2041
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$485,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bannock ST over Cherry Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Bannock ST over Cherry 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 October 2024.

How much traffic does Bannock ST over Cherry Creek carry?

About 3,412 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Bannock ST over Cherry Creek?

The structure is 84 ft (25.5 m) long with a longest span of 81 ft (24.7 m) and a deck 45 ft wide.

Who owns Bannock ST over Cherry Creek?

It is owned by the City or Municipal Highway Agency.