Structure 100000130114013 · Howard County, MD

Md 32 Ebr over Middle Patuxent River

Carries Md 32 Ebr over Middle Patuxent River, 0.89 Mile North Of US 29.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT469 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

469 ft end to end, longest span 178 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.

Built199531 years old
Length469.2 ft143 m
Daily traffic61,442counted 2009
Last inspectedAugust 2023every 24 months

Location

StateMaryland
CountyHoward
Location0.89 Mile North Of US 29
CarriesMd 32 Ebr
CrossesMiddle Patuxent River
Coordinates39.18336, -76.89070

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length469.2 ft (143 m)
Max Span178.1 ft (54.3 m)
Deck Width52.2 ft (15.9 m)
Deck Area2273.7 sq m
Main Spans3
Year Built1995

Traffic

Avg Daily Traffic61,442 (2009)
Truck Traffic8%
Lanes On Bridge3

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number100000130114013

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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