US Bridges

Southport Parkway over Bridgeway Lake

Good

Yolo County, California · 0.5 MI S of Marshall RD · Structure no. 22C0190

Built
2005
20 years old
Condition
Good
inspected January 2022
Type
Slab
Concrete
Length
59 ft
1 main span
Daily traffic
1,248
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Southport Parkway over Bridgeway Lake is a concrete slab carrying Southport Parkway over Bridgeway Lake in Yolo County, California. It was built in 2005, so it is 20 years old, younger 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 1,248 vehicles a day, roughly 1% of them trucks, projected to reach 4,219 by 2044. The structure is 59 ft (18 m) long and 57 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSouthport Parkway
CrossesBridgeway Lake
Location0.5 MI S of Marshall RD
RouteCity Street 0
Coordinates38.52833, -121.57611
Functional classUrban Other Principal Arterial

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 protection9 ExcellentNo problems noted.
Last inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length59 ft (18 m)
Longest span55 ft (16.8 m)
Deck width57 ft (17.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,248 (2014)
Projected traffic4,219 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Southport Parkway over Bridgeway Lake built?

It was built in 2005, making it 20 years old in 2025.

What condition is Southport Parkway over Bridgeway Lake 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 2022.

How much traffic does Southport Parkway over Bridgeway Lake carry?

About 1,248 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Southport Parkway over Bridgeway Lake?

The structure is 59 ft (18 m) long with a longest span of 55 ft (16.8 m) and a deck 57 ft wide.

Who owns Southport Parkway over Bridgeway Lake?

It is owned by the City or Municipal Highway Agency.