Structure 22200000814540 · Tarrant County, TX

IH 820 WB over Mark IV Parkway

Carries IH 820 WB over Mark IV Parkway, 0.5 Mi W Of IH 35w.

Overall conditionGood

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

How ratings work
Deck8/9 · Very 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 FT190 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

190 ft end to end, longest span 100 ft: 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 multi-beam bridge.

Built20215 years old
Length190.0 ft57.9 m
Daily traffic66,684counted 2018
Last inspectedJuly 2023every 48 months

Location

StateTexas
CountyTarrant
Location0.5 Mi W Of IH 35w
CarriesIH 820 WB
CrossesMark IV Parkway
Coordinates32.83971, -97.32122

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length190.0 ft (57.9 m)
Max Span100.1 ft (30.5 m)
Deck Width69.9 ft (21.3 m)
Deck Area1233.3 sq m
Main Spans2
Year Built2021

Traffic

Avg Daily Traffic66,684 (2018)
Truck Traffic5%
Lanes On Bridge3
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 48 months
OwnerLocal Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number022200000814540

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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