US Bridges

Amador Ave over State Route 99

Good

Sacramento County, California · 03-SAC-099-1.62-GAL · Structure no. 24 0139

Built
1958
67 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Concrete Continuous
Length
120 ft
2 main spans
Daily traffic
1,700
2019 count
Owner
State
State Highway Agency

About this bridge

Amador Ave over State Route 99 is a concrete continuous tee beam carrying Amador Ave over State Route 99 in Sacramento County, California. It was built in 1958, so it is 67 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 1,700 vehicles a day, roughly 2% of them trucks, projected to reach 5,379 by 2042. The structure is 120 ft (36.7 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesAmador Ave
CrossesState Route 99
Location03-SAC-099-1.62-GAL
RouteCity Street 0
Coordinates38.26507, -121.30058
Functional classUrban Minor 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.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating33.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length120 ft (36.7 m)
Longest span61 ft (18.5 m)
Deck width37 ft (11.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2019)
Projected traffic5,379 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Amador Ave over State Route 99 built?

It was built in 1958, making it 67 years old in 2025.

What condition is Amador Ave over State Route 99 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 Amador Ave over State Route 99 carry?

About 1,700 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Amador Ave over State Route 99?

The structure is 120 ft (36.7 m) long with a longest span of 61 ft (18.5 m) and a deck 37 ft wide.

Who owns Amador Ave over State Route 99?

It is owned by the State Highway Agency.