US Bridges

SH 78 over Bois Darc & Cooper Crs

Fair

Fannin County, Texas · 2.7 MI S of SH 56 · Structure no. 010750027903020

Built
1947
78 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
520 ft
3 main spans
Daily traffic
2,980
2023 count
Owner
State
State Highway Agency

About this bridge

SH 78 over Bois Darc & Cooper Crs is a steel continuous stringer/multi-beam or girder carrying SH 78 over Bois Darc & Cooper Crs in Fannin County, Texas. It was built in 1947, so it is 78 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,980 vehicles a day, roughly 4% of them trucks, projected to reach 5,304 by 2042. The structure is 520 ft (158.5 m) long and 29 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSH 78
CrossesBois Darc & Cooper Crs
Location2.7 MI S of SH 56
RouteState Highway 78
CountyFannin County
StateTexas
Coordinates33.54053, -96.17951
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating24.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+5 approach)
Design loadOther
Structure length520 ft (158.5 m)
Longest span90 ft (27.4 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,980 (2023)
Projected traffic5,304 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$34,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 78 over Bois Darc & Cooper Crs built?

It was built in 1947, making it 78 years old in 2025.

What condition is SH 78 over Bois Darc & Cooper Crs in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.

How much traffic does SH 78 over Bois Darc & Cooper Crs carry?

About 2,980 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SH 78 over Bois Darc & Cooper Crs?

The structure is 520 ft (158.5 m) long with a longest span of 90 ft (27.4 m) and a deck 29 ft wide.

Who owns SH 78 over Bois Darc & Cooper Crs?

It is owned by the State Highway Agency.