Structure 61650000502232 · Midland County, TX

FM 1788 over Bi 20 FM 662 And Up Rr

Carries FM 1788 over Bi 20 FM 662 And Up Rr, 5.32 Mi SW Of Lp 250.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT630 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

630 ft end to end: about 1.7 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.

Built197551 years old
Length629.9 ft192 m
Daily traffic13,411counted 2022
Last inspectedAugust 2023every 48 months

Location

StateTexas
CountyMidland
Location5.32 Mi SW Of Lp 250
CarriesFM 1788
CrossesBi 20 FM 662 And Up Rr
Coordinates31.92151, -102.21871

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length629.9 ft (192 m)
Max Span121.1 ft (36.9 m)
Deck Width80.4 ft (24.5 m)
Deck Area4,704 sq m
Main Spans1
Year Built1975

Traffic

Avg Daily Traffic13,411 (2022)
Truck Traffic18%
Lanes On Bridge5
Lanes Under Bridge10

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number061650000502232

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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