US Bridges

IH 45 NB over SH 164

Fair

Leon County, Texas · 1.35 MI N of US 79 · Structure no. 171450067503138

Built
1969
56 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
155 ft
1 main span
Daily traffic
17,116
2019 count
Owner
State
State Highway Agency

About this bridge

IH 45 NB over SH 164 is a prestressed concrete stringer/multi-beam or girder carrying IH 45 NB over SH 164 in Leon County, Texas. It was built in 1969, so it is 56 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 17,116 vehicles a day, roughly 38% of them trucks, projected to reach 19,050 by 2033. The structure is 155 ft (47.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 45 NB
CrossesSH 164
Location1.35 MI N of US 79
RouteInterstate 45
CountyLeon County
StateTexas
Coordinates31.46828, -96.08687
Functional classRural Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length155 ft (47.2 m)
Longest span75 ft (22.9 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,116 (2019)
Projected traffic19,050 by 2033
Trucks38%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 45 NB over SH 164 built?

It was built in 1969, making it 56 years old in 2025.

What condition is IH 45 NB over SH 164 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 March 2023.

How much traffic does IH 45 NB over SH 164 carry?

About 17,116 vehicles per day (2019 count), of which roughly 38% are trucks.

How long is IH 45 NB over SH 164?

The structure is 155 ft (47.2 m) long with a longest span of 75 ft (22.9 m) and a deck 43 ft wide.

Who owns IH 45 NB over SH 164?

It is owned by the State Highway Agency.