Structure 89008100000000 · Stephenson County, IL

US 20 WB over Pecatonica River

Carries US 20 WB over Pecatonica River, NE Of Freeport.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT972 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 8/9

972 ft end to end, longest span 160 ft: about 2.7 football fields. 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.

Built200818 years old
Length971.8 ft296.2 m
Daily traffic6,800counted 2023
Last inspectedOctober 2023every 24 months

Location

StateIllinois
CountyStephenson
LocationNE Of Freeport
CarriesUS 20 WB
CrossesPecatonica River
Coordinates42.29962, -89.55738

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length971.8 ft (296.2 m)
Max Span160.1 ft (48.8 m)
Deck Width43.3 ft (13.2 m)
Deck Area3909.8 sq m
Main Spans7
Year Built2008

Traffic

Avg Daily Traffic6,800 (2023)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number089008100000000

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.

Nearby Bridges