Structure 171980121002009 · Robertson County, TX

FM 979 over Brazos River

Carries FM 979 over Brazos River, 2.3 Mi E Of FM 2027.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT470 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

470 ft end to end: 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.

Built197155 years old
Length470.1 ft143.3 m
Daily traffic363counted 2023
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyRobertson
Location2.3 Mi E Of FM 2027
CarriesFM 979
CrossesBrazos River
Coordinates30.97983, -96.75886

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length470.1 ft (143.3 m)
Max Span200.1 ft (61 m)
Deck Width28.2 ft (8.6 m)
Deck Area1232.4 sq m
Main Spans1
Year Built1971

Traffic

Avg Daily Traffic363 (2023)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number171980121002009

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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