SB SR 16 over TACOMA NARROWS (Route: 16)
Num:0016441A0000000x
Open: no restriction [A]
Built: 2007, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Suspension [13]
Approach Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Deck: Steel plate (includes orthotropic) [5] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 1697.7 m = 5570.2 ft
Main Spans: 3 at 853.4 m = 2800.0 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 17.1 m = 56.1 ft (4 Lanes) and Out-To-Out: 20.5 m = 67.3 ft for a 17.1 m = 56.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 54.6 m = 179.1 ft

Location
Unknown [00000]: Pierce County [053], Washington [53]
Owned by State Toll Authority [31], DOT District: 3
5.1 N JCT I-5

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 68 metric ton = 74.8 tons (Load Factor(LF) [1])
Inventory: 40.8 metric ton = 44.9 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: August 2020 [0820] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 43392 (2019) and Trucks: 5%
Future ADT: 62831 (In 2039 )

NB SR 16 over TACOMA NARROWS (Route: 16)
Num:0003418A0000000x
Open: no restriction [A]
Built: 1949, Reconstructed: N/A [0000]
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Suspension [13]
Approach Span(s): Mixed types [20]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 1822.1 m = 5978.3 ft
Main Spans: 3 at 853.4 m = 2800.0 ft
Approach Spans: 10
Skew: 0
Width, Roadway: 14.1 m = 46.3 ft (4 Lanes) and Out-To-Out: 16.4 m = 53.8 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 24.99 m = 82.0 ft and Navigational Clearance: 60.4 m = 198.2 ft

Location
Unknown [00000]: Pierce County [053], Washington [53]
Owned by State Highway Agency [01], DOT District: 3
5.1 N JCT I-5

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 20.4 metric ton = 22.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 15.6 metric ton = 17.2 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])

Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: July 1999 [799] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 43392 (2019) and Trucks: 5%
Future ADT: 62831 (In 2039 )