US Bridges

Q ST over South Channel Dry Creek

Good

Sacramento County, California · 18th Street · Structure no. 24C0316

Built
1959
66 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
145 ft
6 main spans
Daily traffic
3,000
2014 count
Owner
County
County Highway Agency

About this bridge

Q ST over South Channel Dry Creek is a concrete continuous slab carrying Q ST over South Channel Dry Creek in Sacramento County, California. It was built in 1959, so it is 66 years old, older than the California average of 54.8 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 3,000 vehicles a day, roughly 10% of them trucks, projected to reach 4,377 by 2042. The structure is 145 ft (44.2 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesQ ST
CrossesSouth Channel Dry Creek
Location18th Street
RouteCounty Highway 0
Coordinates38.69799, -121.4233
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span26 ft (7.9 m)
Deck width37 ft (11.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2014)
Projected traffic4,377 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Q ST over South Channel Dry Creek built?

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

What condition is Q ST over South Channel 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 January 2024.

How much traffic does Q ST over South Channel Dry Creek carry?

About 3,000 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Q ST over South Channel Dry Creek?

The structure is 145 ft (44.2 m) long with a longest span of 26 ft (7.9 m) and a deck 37 ft wide.

Who owns Q ST over South Channel Dry Creek?

It is owned by the County Highway Agency.