US Bridges

CR 4550 over Trib Bois Darc Crk

Fair

Fannin County, Texas · 0.4 MI N of SH 121 · Structure no. 010750AA0466001

Built
2003
22 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

CR 4550 over Trib Bois Darc Crk is a prestressed concrete stringer/multi-beam or girder carrying CR 4550 over Trib Bois Darc Crk in Fannin County, Texas. It was built in 2003, so it is 22 years old, younger 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 6 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 30 vehicles a day, projected to reach 45 by 2040. The structure is 60 ft (18.3 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 4550
CrossesTrib Bois Darc Crk
Location0.4 MI N of SH 121
RouteCounty Highway 4550
CountyFannin County
StateTexas
Coordinates33.48118, -96.26543
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic45 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 4550 over Trib Bois Darc Crk built?

It was built in 2003, making it 22 years old in 2025.

What condition is CR 4550 over Trib Bois Darc Crk 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 April 2024.

How much traffic does CR 4550 over Trib Bois Darc Crk carry?

About 30 vehicles per day (2020 count).

How long is CR 4550 over Trib Bois Darc Crk?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 26 ft wide.

Who owns CR 4550 over Trib Bois Darc Crk?

It is owned by the County Highway Agency.