Structure 13055 · Cullman County, AL

SR 157 over Catoma Lake

Carries SR 157 over Catoma Lake, 1.6 Mi N Jct Sr69 * Sr157.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT604 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

604 ft end to end, longest span 100 ft: about 1.7 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 multi-beam bridge.

Built198343 years old
Length604.0 ft184.1 m
Daily traffic6,651counted 2022
Last inspectedDecember 2023every 24 months

Location

StateAlabama
CountyCullman
Location1.6 Mi N Jct Sr69 * Sr157
CarriesSR 157
CrossesCatoma Lake
Coordinates34.19906, -86.81231

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length604.0 ft (184.1 m)
Max Span100.1 ft (30.5 m)
Deck Width42.0 ft (12.8 m)
Deck Area2356.5 sq m
Main Spans7
Year Built1983

Traffic

Avg Daily Traffic6,651 (2022)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number013055

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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