US Bridges

N. Bannock ST over Cherry Creek

Good

Denver County, Colorado · Bannock ST at Speer Blvd · Structure no. D-01-CC-168

Built
1989
36 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
5,456
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

N. Bannock ST over Cherry Creek is a prestressed concrete box beam or girders - multiple carrying N. 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 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 5,456 vehicles a day, roughly 4% of them trucks, projected to reach 6,057 by 2041. The structure is 82 ft (25.1 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN. Bannock ST
CrossesCherry Creek
LocationBannock ST at Speer Blvd
RouteCity Street 0
Coordinates39.72974, -104.99106
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
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 rating57.3 US tons
Inventory rating27.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25.1 m)
Longest span80 ft (24.4 m)
Deck width46 ft (13.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,456 (2021)
Projected traffic6,057 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$477,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N. Bannock ST over Cherry Creek built?

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

What condition is N. Bannock ST over Cherry Creek 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 October 2024.

How much traffic does N. Bannock ST over Cherry Creek carry?

About 5,456 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is N. Bannock ST over Cherry Creek?

The structure is 82 ft (25.1 m) long with a longest span of 80 ft (24.4 m) and a deck 46 ft wide.

Who owns N. Bannock ST over Cherry Creek?

It is owned by the City or Municipal Highway Agency.