US Bridges

SH 43 over Key Creek

Fair

Harrison County, Texas · 3.00 MI NE of Lp 390 · Structure no. 191030020802001

Built
1934
91 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
2,091
2020 count
Owner
State
State Highway Agency

About this bridge

SH 43 over Key Creek is a concrete culvert carrying SH 43 over Key Creek in Harrison County, Texas. It was built in 1934, so it is 91 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 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 2,091 vehicles a day, roughly 20% of them trucks, projected to reach 3,660 by 2033. The structure is 23 ft (7 m) long and 37 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSH 43
CrossesKey Creek
Location3.00 MI NE of Lp 390
RouteState Highway 43
CountyHarrison County
StateTexas
Coordinates32.58537, -94.2635
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,091 (2020)
Projected traffic3,660 by 2033
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 43 over Key Creek built?

It was built in 1934, making it 91 years old in 2025.

What condition is SH 43 over Key Creek 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 September 2023.

How much traffic does SH 43 over Key Creek carry?

About 2,091 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is SH 43 over Key Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 37 ft wide.

Who owns SH 43 over Key Creek?

It is owned by the State Highway Agency.