US Bridges

96th Street over Coal Creek

Good

Boulder County, Colorado · 0.15 Mi. S. of SH42 · Structure no. LOUIS-96TH-COAL

Built
2006
19 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
247 ft
2 main spans
Daily traffic
15,821
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

96th Street over Coal Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying 96th Street over Coal Creek in Boulder County, Colorado. It was built in 2006, so it is 19 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 15,821 vehicles a day, roughly 9% of them trucks, projected to reach 18,985 by 2043. The structure is 247 ft (75.3 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries96th Street
CrossesCoal Creek
Location0.15 Mi. S. of SH42
RouteCity Street 0
Coordinates39.96997, -105.1265
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length247 ft (75.3 m)
Longest span119 ft (36.3 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,821 (2023)
Projected traffic18,985 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 96th Street over Coal Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is 96th Street over Coal 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 February 2025.

How much traffic does 96th Street over Coal Creek carry?

About 15,821 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is 96th Street over Coal Creek?

The structure is 247 ft (75.3 m) long with a longest span of 119 ft (36.3 m) and a deck 47 ft wide.

Who owns 96th Street over Coal Creek?

It is owned by the City or Municipal Highway Agency.