US Bridges

SH 119 Nbnd over Dry Creek

Good

Boulder County, Colorado · 4.5 MI NE of JCT US 36 · Structure no. D-16-M

Built
1959
66 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
18,500
2020 count
Owner
State
State Highway Agency

About this bridge

SH 119 Nbnd over Dry Creek is a concrete culvert carrying SH 119 Nbnd over Dry Creek in Boulder County, Colorado. It was built in 1959, so it is 66 years old, older 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 18,500 vehicles a day, roughly 4% of them trucks, projected to reach 21,275 by 2040. The structure is 37 ft (11.3 m) long and 63 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 119 Nbnd
CrossesDry Creek
Location4.5 MI NE of JCT US 36
RouteState Highway 119B
Coordinates40.07968, -105.20023
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating66.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span14 ft (4.2 m)
Deck width63 ft (19.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,500 (2020)
Projected traffic21,275 by 2040
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 119 Nbnd over Dry Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is SH 119 Nbnd over Dry 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 September 2023.

How much traffic does SH 119 Nbnd over Dry Creek carry?

About 18,500 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SH 119 Nbnd over Dry Creek?

The structure is 37 ft (11.3 m) long with a longest span of 14 ft (4.2 m) and a deck 63 ft wide.

Who owns SH 119 Nbnd over Dry Creek?

It is owned by the State Highway Agency.