Structure 1810183 · Somerset County, NJ

US 206 Bypass over Csx Rr

Carries US 206 Bypass over Csx Rr, 1 Mi. N. Of Hillsborough.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT253 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 9/9Substructure 9/9

253 ft end to end: about 4 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built201313 years old
Length253.0 ft77.1 m
Daily traffic1,860counted 2023
Last inspectedJune 2023every 24 months

Location

StateNew Jersey
CountySomerset
Location1 Mi. N. Of Hillsborough
CarriesUS 206 Bypass
CrossesCsx Rr
Coordinates40.48873, -74.63894

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length253.0 ft (77.1 m)
Max Span230.0 ft (70.1 m)
Deck Width68.2 ft (20.8 m)
Deck Area1603.7 sq m
Main Spans1
Year Built2013

Traffic

Avg Daily Traffic1,860 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1810183

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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