Structure 99990300000000 · Will County, IL

Brandon Road over Des Plaines River

Carries Brandon Road over Des Plaines River, Brandon Road&desp Rv.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT202 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

202 ft end to end: about 3 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 bascule bridge (drawn closed).

Built1932rebuilt 1990
Length202.1 ft61.6 m
Daily traffic6,200counted 2023
Last inspectedJune 2024every 12 months

Location

StateIllinois
CountyWill
LocationBrandon Road&desp Rv
CarriesBrandon Road
CrossesDes Plaines River
Coordinates41.50239, -88.10453

Physical Characteristics

MaterialSteel
DesignMovable - Bascule
Total Length202.1 ft (61.6 m)
Max Span150.9 ft (46 m)
Deck Width23.3 ft (7.1 m)
Deck Area437.4 sq m
Main Spans1
Year Built1932 (reconstructed 1990)

Traffic

Avg Daily Traffic6,200 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number099990300000000

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