Structure 91610005515380 · McLennan County, TX

US 84 over US 77 Bus

Carries US 84 over US 77 Bus, 0.4 Mi SW Of IH 35.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
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 FT1,567 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

1,567 ft end to end, longest span 110 ft: about 4.4 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.

Built195571 years old
Length1566.9 ft477.6 m
Daily traffic11,299counted 2015
Last inspectedJanuary 2023every 24 months

Location

StateTexas
CountyMcLennan
Location0.4 Mi SW Of IH 35
CarriesUS 84
CrossesUS 77 Bus
Coordinates31.58198, -97.11540

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1566.9 ft (477.6 m)
Max Span109.9 ft (33.5 m)
Deck Width60.4 ft (18.4 m)
Deck Area8787.8 sq m
Main Spans19
Year Built1955

Traffic

Avg Daily Traffic11,299 (2015)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge14

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour CriticalNot applicable
Structure Number091610005515380

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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