US Bridges

SH 21 over Carrizo Creek

Good

Nacogdoches County, Texas · 3.5 MI SE of Loop 224 · Structure no. 111740011808088

Built
2024
1 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
280 ft
3 main spans
Daily traffic
4,625
2022 count
Owner
State
State Highway Agency

About this bridge

SH 21 over Carrizo Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 21 over Carrizo Creek in Nacogdoches County, Texas. It was built in 2024, so it is 1 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,625 vehicles a day, roughly 9% of them trucks, projected to reach 6,475 by 2042. The structure is 280 ft (85.3 m) long and 46 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesSH 21
CrossesCarrizo Creek
Location3.5 MI SE of Loop 224
RouteState Highway 21
CountyNacogdoches County
StateTexas
Coordinates31.57266, -94.56785
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
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 spans3 (+2 approach)
Design loadHL 93
Structure length280 ft (85.3 m)
Longest span70 ft (21.3 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,625 (2022)
Projected traffic6,475 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 21 over Carrizo Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is SH 21 over Carrizo Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does SH 21 over Carrizo Creek carry?

About 4,625 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is SH 21 over Carrizo Creek?

The structure is 280 ft (85.3 m) long with a longest span of 70 ft (21.3 m) and a deck 46 ft wide.

Who owns SH 21 over Carrizo Creek?

It is owned by the State Highway Agency.