US Bridges

Center Parkway over Union House Creek

Fair

Sacramento County, California · Just N of Cosumnes Blvd · Structure no. 24C0299

Built
1975
50 years old, rebuilt 1993
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
67 ft
4 main spans
Daily traffic
13,295
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Center Parkway over Union House Creek is a concrete continuous slab carrying Center Parkway over Union House Creek in Sacramento County, California. It was built in 1975 and reconstructed in 1993, so it is 50 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 13,295 vehicles a day, roughly 5% of them trucks, projected to reach 26,898 by 2042. The structure is 67 ft (20.3 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCenter Parkway
CrossesUnion House Creek
LocationJust N of Cosumnes Blvd
RouteCity Street 0
CountySacramento County
StateCalifornia
Coordinates38.45848, -121.42829
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.5 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length67 ft (20.3 m)
Longest span18 ft (5.5 m)
Deck width95 ft (28.9 m)
Roadway width82 ft (25.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,295 (2016)
Projected traffic26,898 by 2042
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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 Center Parkway over Union House Creek built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1993.

What condition is Center Parkway over Union House Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does Center Parkway over Union House Creek carry?

About 13,295 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Center Parkway over Union House Creek?

The structure is 67 ft (20.3 m) long with a longest span of 18 ft (5.5 m) and a deck 95 ft wide.

Who owns Center Parkway over Union House Creek?

It is owned by the City or Municipal Highway Agency.