US Bridges

US 50 (I-305) WB over 15th & 16th Streets Ramp

Fair

Sacramento County, California · 03-SAC-050-L1.36-SAC · Structure no. 24 0247L

Built
1967
58 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
529 ft
5 main spans
Daily traffic
115,500
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 (I-305) WB over 15th & 16th Streets Ramp is a concrete continuous box beam or girders - multiple carrying US 50 (I-305) WB over 15th & 16th Streets Ramp in Sacramento County, California. It was built in 1967, so it is 58 years old, older 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 115,500 vehicles a day, roughly 3% of them trucks, projected to reach 127,521 by 2041. The structure is 529 ft (161.2 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 50 (I-305) WB
Crosses15th & 16th Streets Ramp
Location03-SAC-050-L1.36-SAC
RouteInterstate 50
CountySacramento County
StateCalifornia
Coordinates38.56369, -121.4932
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.3 US tons
Inventory rating56.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length529 ft (161.2 m)
Longest span107 ft (32.6 m)
Deck width79 ft (24.1 m)
Roadway width77 ft (23.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115,500 (2020)
Projected traffic127,521 by 2041
Trucks3%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 US 50 (I-305) WB over 15th & 16th Streets Ramp built?

It was built in 1967, making it 58 years old in 2025.

What condition is US 50 (I-305) WB over 15th & 16th Streets Ramp 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 October 2023.

How much traffic does US 50 (I-305) WB over 15th & 16th Streets Ramp carry?

About 115,500 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is US 50 (I-305) WB over 15th & 16th Streets Ramp?

The structure is 529 ft (161.2 m) long with a longest span of 107 ft (32.6 m) and a deck 79 ft wide.

Who owns US 50 (I-305) WB over 15th & 16th Streets Ramp?

It is owned by the State Highway Agency.