Structure 121020B25401002 · Harris County, TX

Franklin ST over Buffalo Bayou

Carries Franklin ST over Buffalo Bayou, 0.35 Mi W Of Main ST.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT280 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

280 ft end to end, longest span 40 ft: about 4 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 tee-beam bridge.

Built193195 years old
Length279.9 ft85.3 m
Daily traffic6,380counted 2022
Last inspectedOctober 2023every 24 months

Location

StateTexas
CountyHarris
Location0.35 Mi W Of Main ST
CarriesFranklin ST
CrossesBuffalo Bayou
Coordinates29.76495, -95.36439

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length279.9 ft (85.3 m)
Max Span40.0 ft (12.2 m)
Deck Width37.7 ft (11.5 m)
Deck Area981.0 sq m
Main Spans8
Year Built1931

Traffic

Avg Daily Traffic6,380 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical6 — Scour calculated, stable
Structure Number121020B25401002

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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