Structure C007411525 · Richardson County, NE

637 Av-719 / 720 R over Little Muddy Creek

Carries 637 Av-719 / 720 R over Little Muddy Creek, 1n5w Stella (637-719/720).

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT72 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

72 ft end to end. Lengths and the car 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
Length71.9 ft21.9 m
Daily traffic30counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateNebraska
CountyRichardson
Location1n5w Stella (637-719/720)
Carries637 Av-719 / 720 R
CrossesLittle Muddy Creek
Coordinates40.24730, -95.87910

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length71.9 ft (21.9 m)
Max Span70.5 ft (21.5 m)
Deck Width27.6 ft (8.4 m)
Deck Area184.0 sq m
Main Spans1
Year Built1983

Traffic

Avg Daily Traffic30 (2023)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberC007411525

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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