Structure 121020TOL010109 · Harris County, TX

Iah Conn Ramp over Jfk BLVD

Carries Iah Conn Ramp over Jfk BLVD, 1.05 Mi N Of Bw 8.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT840 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

840 ft end to end, longest span 226 ft: about 2.3 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 box-beam bridge.

Built200620 years old
Length839.9 ft256 m
Daily traffic4,000counted 2015
Last inspectedNovember 2023every 24 months

Location

StateTexas
CountyHarris
Location1.05 Mi N Of Bw 8
CarriesIah Conn Ramp
CrossesJfk BLVD
Coordinates29.95320, -95.33246

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Multiple
Total Length839.9 ft (256 m)
Max Span226.0 ft (68.9 m)
Deck Width42.3 ft (12.9 m)
Deck Area3302.4 sq m
Main Spans5
Year Built2006

Traffic

Avg Daily Traffic4,000 (2015)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge5

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerLocal Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020TOL010109

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