Structure 895 · St. Louis County, MO

Mississippi AVE S over Is 44 Is 44

Carries Mississippi AVE S over Is 44 Is 44, S 27 T 45 N R 7 E.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT306 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

306 ft end to end, longest span 116 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 multi-beam bridge.

Built1970rebuilt 2007
Length306.1 ft93.3 m
Daily traffic5,652counted 2024
Last inspectedAugust 2023every 24 months

Location

StateMissouri
CountySt. Louis
LocationS 27 T 45 N R 7 E
CarriesMississippi AVE S
CrossesIs 44 Is 44
Coordinates38.61224, -90.21450

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length306.1 ft (93.3 m)
Max Span116.1 ft (35.4 m)
Deck Width43.6 ft (13.3 m)
Deck Area1240.9 sq m
Main Spans4
Year Built1970 (reconstructed 2007)

Traffic

Avg Daily Traffic5,652 (2024)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge9

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number895

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.

Nearby Bridges