US Bridges

State Route 183 SB over US HWY 101 (@pm R88.24)

Good

Monterey County, California · 05-MON-183-0.01-SAL · Structure no. 44 0095L

Built
1953
72 years old, rebuilt 1991
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
129 ft
2 main spans
Daily traffic
14,280
2008 count
Owner
State
State Highway Agency

About this bridge

State Route 183 SB over US HWY 101 (@pm R88.24) is a concrete continuous box beam or girders - multiple carrying State Route 183 SB over US HWY 101 (@pm R88.24) in Monterey County, California. It was built in 1953 and reconstructed in 1991, so it is 72 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 14,280 vehicles a day, roughly 10% of them trucks, projected to reach 18,342 by 2044. The structure is 129 ft (39.3 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesState Route 183 SB
CrossesUS HWY 101 (@pm R88.24)
Location05-MON-183-0.01-SAL
RouteState Highway 183
Coordinates36.68675, -121.65249
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 alignment6: Equal to present minimum criteria
Operating rating50.7 US tons
Inventory rating36.4 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length129 ft (39.3 m)
Longest span61 ft (18.7 m)
Deck width56 ft (17 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,280 (2008)
Projected traffic18,342 by 2044
Trucks10%
Lanes on structure2
Traffic directionOne-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 State Route 183 SB over US HWY 101 (@pm R88.24) built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1991.

What condition is State Route 183 SB over US HWY 101 (@pm R88.24) 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 State Route 183 SB over US HWY 101 (@pm R88.24) carry?

About 14,280 vehicles per day (2008 count), of which roughly 10% are trucks.

How long is State Route 183 SB over US HWY 101 (@pm R88.24)?

The structure is 129 ft (39.3 m) long with a longest span of 61 ft (18.7 m) and a deck 56 ft wide.

Who owns State Route 183 SB over US HWY 101 (@pm R88.24)?

It is owned by the State Highway Agency.