Structure 180610008113207 · Denton County, TX

IH 35w SB Off Ramp over Catherine Branch

Carries IH 35w SB Off Ramp over Catherine Branch, 1.70 Mi S Of FM 1171.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT246 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

246 ft end to end, longest span 82 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.

Built200125 years old
Length246.1 ft75 m
Daily traffic420counted 2010
Last inspectedAugust 2023every 24 months

Location

StateTexas
CountyDenton
Location1.70 Mi S Of FM 1171
CarriesIH 35w SB Off Ramp
CrossesCatherine Branch
Coordinates33.04457, -97.25792

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length246.1 ft (75 m)
Max Span82.0 ft (25 m)
Deck Width29.5 ft (9 m)
Deck Area675 sq m
Main Spans3
Year Built2001

Traffic

Avg Daily Traffic420 (2010)
Truck Traffic3%
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number180610008113207

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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