US Bridges

Discovery Pk RD over Natomas East Main Drain

Good

Sacramento County, California · Garden Highway · Structure no. 24C0360

Built
1970
55 years old
Condition
Good
inspected October 2021
Type
Tee Beam
Prestressed Concrete Continuous
Length
240 ft
6 main spans
Daily traffic
1,800
2004 count
Owner
County
County Highway Agency

About this bridge

Discovery Pk RD over Natomas East Main Drain is a prestressed concrete continuous tee beam carrying Discovery Pk RD over Natomas East Main Drain in Sacramento County, California. It was built in 1970, so it is 55 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 1,800 vehicles a day, roughly 10% of them trucks, projected to reach 5,123 by 2043. The structure is 240 ft (73.2 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesDiscovery Pk RD
CrossesNatomas East Main Drain
LocationGarden Highway
RouteCounty Highway 0
Coordinates38.60672, -121.50192
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2021
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.8 US tons
Inventory rating36.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length240 ft (73.2 m)
Longest span40 ft (12.2 m)
Deck width37 ft (11.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2004)
Projected traffic5,123 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Discovery Pk RD over Natomas East Main Drain built?

It was built in 1970, making it 55 years old in 2025.

What condition is Discovery Pk RD over Natomas East Main Drain 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 October 2021.

How much traffic does Discovery Pk RD over Natomas East Main Drain carry?

About 1,800 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is Discovery Pk RD over Natomas East Main Drain?

The structure is 240 ft (73.2 m) long with a longest span of 40 ft (12.2 m) and a deck 37 ft wide.

Who owns Discovery Pk RD over Natomas East Main Drain?

It is owned by the County Highway Agency.