Structure 121020168505030 · Harris County, TX

SH 6 over Langham Creek

Carries SH 6 over Langham Creek, 0.8 Mi S Of FM 529.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
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 FT180 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

180 ft end to end, longest span 60 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 box-beam bridge.

Built1981rebuilt 1991
Length180.1 ft54.9 m
Daily traffic41,301counted 2020
Last inspectedSeptember 2024every 12 months

Location

StateTexas
CountyHarris
Location0.8 Mi S Of FM 529
CarriesSH 6
CrossesLangham Creek
Coordinates29.86605, -95.64518

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length180.1 ft (54.9 m)
Max Span60.0 ft (18.3 m)
Deck Width105.3 ft (32.1 m)
Deck Area1762.3 sq m
Main Spans3
Year Built1981 (reconstructed 1991)

Traffic

Avg Daily Traffic41,301 (2020)
Truck Traffic5%
Lanes On Bridge6

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number121020168505030

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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