Structure 10888 · Montgomery County, AL

I85 Sbl over Holt ST

Carries I85 Sbl over Holt ST, I85 And I65 Interchange.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT486 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

486 ft end to end, longest span 99 ft: about 7 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 multi-beam bridge.

Built197353 years old
Length485.9 ft148.1 m
Daily traffic22,110counted 2013
Last inspectedApril 2023every 24 months

Location

StateAlabama
CountyMontgomery
LocationI85 And I65 Interchange
CarriesI85 Sbl
CrossesHolt ST
Coordinates32.36744, -86.32025

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length485.9 ft (148.1 m)
Max Span99.1 ft (30.2 m)
Deck Width54.1 ft (16.5 m)
Deck Area2443.7 sq m
Main Spans6
Year Built1973

Traffic

Avg Daily Traffic22,110 (2013)
Truck Traffic21%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number010888

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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