US Bridges

SH 21 over King Creek

Good

Nacogdoches County, Texas · 12.7 MI W of US 59 · Structure no. 111740011806017

Built
1935
90 years old
Condition
Good
inspected March 2024
Type
Tee Beam
Concrete
Length
114 ft
4 main spans
Daily traffic
2,765
2024 count
Owner
State
State Highway Agency

About this bridge

SH 21 over King Creek is a concrete tee beam carrying SH 21 over King Creek in Nacogdoches County, Texas. It was built in 1935, so it is 90 years old, older 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 2,765 vehicles a day, roughly 16% of them trucks, projected to reach 3,332 by 2040. The structure is 114 ft (34.7 m) long and 27 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesSH 21
CrossesKing Creek
Location12.7 MI W of US 59
RouteState Highway 21
StateTexas
Coordinates31.66931, -94.89179
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length114 ft (34.7 m)
Longest span28 ft (8.5 m)
Deck width27 ft (8.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,765 (2024)
Projected traffic3,332 by 2040
Trucks16%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$6,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 21 over King Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is SH 21 over King 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 King Creek carry?

About 2,765 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is SH 21 over King Creek?

The structure is 114 ft (34.7 m) long with a longest span of 28 ft (8.5 m) and a deck 27 ft wide.

Who owns SH 21 over King Creek?

It is owned by the State Highway Agency.