Structure 1805709W0750011 · Dallas County, TX

Walnut Hill LN WB over White Rock Ck Relief

Carries Walnut Hill LN WB over White Rock Ck Relief, 0.6 Mi E Of Greenville.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT400 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

400 ft end to end, longest span 80 ft: about 6 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.

Built198640 years old
Length399.9 ft121.9 m
Daily traffic9,483counted 2019
Last inspectedNovember 2024every 12 months

Location

StateTexas
CountyDallas
Location0.6 Mi E Of Greenville
CarriesWalnut Hill LN WB
CrossesWhite Rock Ck Relief
Coordinates32.88367, -96.74927

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length399.9 ft (121.9 m)
Max Span80.1 ft (24.4 m)
Deck Width43.0 ft (13.1 m)
Deck Area1596.9 sq m
Main Spans5
Year Built1986

Traffic

Avg Daily Traffic9,483 (2019)
Lanes On Bridge3

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number1805709W0750011

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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