Structure 15507 · Montgomery County, AL

I65 Nbl over Catoma Creek

Carries I65 Nbl over Catoma Creek, 1.4 Mi.s.of Sou.blvd..

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT991 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

991 ft end to end, longest span 80 ft: about 2.8 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 tee-beam bridge.

Built1966rebuilt 1992
Length991.1 ft302.1 m
Daily traffic32,555counted 2013
Last inspectedJune 2023every 24 months

Location

StateAlabama
CountyMontgomery
Location1.4 Mi.s.of Sou.blvd.
CarriesI65 Nbl
CrossesCatoma Creek
Coordinates32.31525, -86.33652

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length991.1 ft (302.1 m)
Max Span80.1 ft (24.4 m)
Deck Width70.9 ft (21.6 m)
Deck Area6525.4 sq m
Main Spans3
Year Built1966 (reconstructed 1992)

Traffic

Avg Daily Traffic32,555 (2013)
Truck Traffic16%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number015507

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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