US Bridges

Bannock ST over Mississippi Avenue

Good

Denver County, Colorado · Bannock at Mississippi Av · Structure no. D-04-BOST-100

Built
1984
41 years old
Condition
Good
inspected November 2024
Type
Slab
Prestressed Concrete Continuous
Length
70 ft
2 main spans
Daily traffic
—
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bannock ST over Mississippi Avenue is a prestressed concrete continuous slab carrying Bannock ST over Mississippi Avenue in Denver County, Colorado. It was built in 1984, so it is 41 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.

No traffic count is recorded. The structure is 70 ft (21.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBannock ST
CrossesMississippi Avenue
LocationBannock at Mississippi Av
RouteCity Street 0
Coordinates39.69661, -104.99017
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.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.7 US tons
Inventory rating36.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length70 ft (21.4 m)
Longest span36 ft (11.1 m)
Deck width43 ft (13 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bannock ST over Mississippi Avenue built?

It was built in 1984, making it 41 years old in 2025.

What condition is Bannock ST over Mississippi Avenue 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 November 2024.

How much traffic does Bannock ST over Mississippi Avenue carry?

No traffic count is recorded for this structure.

How long is Bannock ST over Mississippi Avenue?

The structure is 70 ft (21.4 m) long with a longest span of 36 ft (11.1 m) and a deck 43 ft wide.

Who owns Bannock ST over Mississippi Avenue?

It is owned by the City or Municipal Highway Agency.