US Bridges

DR Mlk Jr Blvd over HWY 99

Good

San Joaquin County, California · 10-SJ-099-18.02-STKN · Structure no. 29 0329

Built
2016
9 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
264 ft
2 main spans
Daily traffic
11,700
2015 count
Owner
State
State Highway Agency

About this bridge

DR Mlk Jr Blvd over HWY 99 is a prestressed concrete continuous box beam or girders - multiple carrying DR Mlk Jr Blvd over HWY 99 in San Joaquin County, California. It was built in 2016, so it is 9 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 11,700 vehicles a day, roughly 2% of them trucks, projected to reach 20,471 by 2042. The structure is 264 ft (80.5 m) long and 63 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesDR Mlk Jr Blvd
CrossesHWY 99
Location10-SJ-099-18.02-STKN
RouteCity Street 0
Coordinates37.95245, -121.23896
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.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHL 93
Structure length264 ft (80.5 m)
Longest span137 ft (41.9 m)
Deck width63 ft (19.2 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,700 (2015)
Projected traffic20,471 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 DR Mlk Jr Blvd over HWY 99 built?

It was built in 2016, making it 9 years old in 2025.

What condition is DR Mlk Jr Blvd over HWY 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 June 2024.

How much traffic does DR Mlk Jr Blvd over HWY 99 carry?

About 11,700 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is DR Mlk Jr Blvd over HWY 99?

The structure is 264 ft (80.5 m) long with a longest span of 137 ft (41.9 m) and a deck 63 ft wide.

Who owns DR Mlk Jr Blvd over HWY 99?

It is owned by the State Highway Agency.