Structure 180570296401482 · Dallas County, TX

SH 161 Nbml over Trinity BLVD Shady Gr

Carries SH 161 Nbml over Trinity BLVD Shady Gr, 2.28 Mi S Of SH 183.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,073 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

2,073 ft end to end, longest span 124 ft: about 5.8 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.

Built200917 years old
Length2073.2 ft631.9 m
Daily traffic—reported figure implausible
Last inspectedMarch 2022every 48 months

Location

StateTexas
CountyDallas
Location2.28 Mi S Of SH 183
CarriesSH 161 Nbml
CrossesTrinity BLVD Shady Gr
Coordinates32.80113, -97.01827

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length2073.2 ft (631.9 m)
Max Span124.0 ft (37.8 m)
Deck Width83.0 ft (25.3 m)
Deck Area15987.1 sq m
Main Spans18
Year Built2009

Traffic

Avg Daily Traffic156,000 (2016)
That is about 52,000 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Lanes On Bridge3
Lanes Under Bridge14

Inspection & Ownership

Last InspectionMarch 2022
Inspection FrequencyEvery 48 months
OwnerLocal Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number180570296401482

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